batgrbproduct analysis for trigger=1102329

batgrbproduct Analysis for Trigger=1102329

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Nov 18 22:13:15 EST 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1102329
======================================================================

  Trigger: 01102329      Segment: 000

  BAT Trigger Time: 671476037.984   [s; MET]
      Trigger Stop: 671476038.016   [s; MET]
               UTC: 2022-04-12T17:06:49.033660    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 320.794376319468   Dec: -0.223218895688613  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.88
     Image Trigger?:     NO
     Rate S/N Ratio:     46.5617869072913  [ if not an image trigger ]
     Image S/N Ratio:    8.88

  Flight Position:   [ source = BAT ]
    RA: 320.794376319468   Dec: -0.223218895688613  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 320.758964270219   Dec: -0.260304900869708  [deg; J2000]  
        { 21h 23m 02.2s , -00d 15' 37.1" }
         +/- 1.65861329852165 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.750173057831972 [arcmin] (formal 1-sigma fit error)
    SNR: 14.7637521881701
 
  Angular difference between Flight and Ground position is 3.076639 arcmin
 
  Partial Coding Fraction: 0.75    [ including projection effects ]

  Duration
     T90: 0.139999985694885 +/- 0.0399999856949492
        Measured from: -0.0119999647140503
                   to: 0.128000020980835     [s; relative to TRIGTIME]
     T50: 0.059999942779541 +/- 0.020396072630595
        Measured from: 0.00800001621246338
                   to: 0.0679999589920044     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.435999989509583     
                   to: 0.564000010490417     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.031999945640564     
                   to: 0.156000018119812     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.028424   0.048107   0.038423   0.019017
           0.004131   0.005128   0.005143   0.004143 [error]
 Peak      0.028742   0.044313   0.033918   0.023157
           0.007642   0.008382   0.007885   0.006727 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 8.35e-09 1.86e-08 3.27e-08 1.34e-07 8.91e-08 1.94e-07   erg/cm2
              Error 1.72e-09 2.31e-09 4.82e-09 4.39e-08 1.22e-08 4.73e-08   erg/cm2
Peak flux Power-law 2.19e-01 3.01e-01 3.06e-01 5.67e-01 1.01e+00 1.39e+00   ph/cm2/s
              Error 1.02e-01 7.98e-02 6.42e-02 3.09e-01 1.98e-01 3.07e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.40e-09 1.84e-08 3.23e-08 1.51e-07 8.99e-08 1.94e-07   erg/cm2
              Error -------- 2.94e-09 4.89e-09 4.58e-08 1.47e-08 5.43e-08   erg/cm2
Peak flux Cutoff-PL 2.20e-01 3.02e-01 3.06e-01 5.81e-01 1.02e+00 1.37e+00   ph/cm2/s
              Error 1.02e-01 7.98e-02 6.44e-02 -------- 2.16e-01 2.75e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.187    0.203    -      -           4.66e-02 5.40e-03   59.170 57
CPL   1.183    0.429    10000.0    0.0      4.68e-02 5.41e-03   59.170 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.976    0.419    -      -           8.77e-03 1.69e-03   58.920 57
CPL   2.297    0.584      99.7    0.0      1.56e-03 0.00e+00   56.170 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 0.128000 sec.
T50 in the 50-300 keV band: 0.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.188   -0.032    0.156
T90     0.140   -0.012    0.128
T50     0.060    0.008    0.068
Peak    1.000   -0.436    0.564
  • Click here for the BAT GCN circular template
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte
  • Special notes of this burst

    Image

    Pre-slew 15.0-350.0 keV image (Event data)

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      320.7590    -0.2603   0.0131    23.1186    36.8197         0.1394980     14.764 TRIG_01102329                 
     
    Foreground time interval of the image:
     -0.032   0.156 (delta_t =   0.188 [sec])
    Background time interval of the image:
    -239.984  -0.032 (delta_t = 239.952 [sec])
    

    Lightcurves

    Notes:

    1 s binning

    From T0-310 s to T0+310 s
    From T100_start - 20 s to T100_end + 30 s
    Full time interval

    64 ms binning

    Full time interval
    From T100_start to T100_end
    From T0-5 sec to T0+5 sec

    16 ms binning

    From T100_start-5 s to T100_start+5 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.032000
    

    8 ms binning

    From T100_start-3 s to T100_start+3 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.032000
    

    2 ms binning

    From T100_start-1 s to T100_start+1 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.032000
    

    SN=5 or 10 sec. binning (whichever binning is satisfied first)

    SN=5 or 10 sec. binning (T < 200 sec)

    Quad-rate summed light curves (from T0-300s to T0+1000s)

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from   -0.032 sec. to    0.156 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.18675     ( -0.203151   0.203339 )
    Norm@50keV  : 4.65864E-02    ( -0.00541008   0.00539567 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   59.17     using 59 bins.
     Reduced chi-squared = 1.03807
    # Null hypothesis probability of 3.96e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 0.188 sec: 5.45833 ( -0.62937  0.62956 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.92026e-08 ( -1.21144e-08  1.22557e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.032 sec. to    0.156 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.18263     ( -0.608655   0.249481 )
    Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
    Norm@50keV  : 4.68133E-02    ( -0.00544659   0.00537414 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   59.17     using 59 bins.
     Reduced chi-squared = 1.05661
    # Null hypothesis probability of 3.61e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 0.188 sec: 2.05723 ( -0.88134  0.62171 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.99204e-08 ( -1.7367e-08  1.2065e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.032 sec. to    0.156 sec.
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 16.9064  (-2.76778  3.56001)
    R^2/D10^2   : 0.430544  (-0.197557   0.34322)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   80.34     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 2.25e-02 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.719e-09   9.983e-10
    25- 50  2.079e-08   3.466e-09
    50-150  4.235e-08   1.048e-08
    15-150  6.785e-08   1.292e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-36.4794      -200)
    Norm        : 21.7568       (-2.5656     2.5656)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   67.81     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 1.55e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.024e-08   5.732e-09
    25- 50  1.970e-08   1.088e-08
    50-150  4.320e-08   2.382e-08
    15-150  7.314e-08   4.035e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 9.59710        (-2.9585      4.16799)
    R1^2/D10^2  : 2.04920        (-1.1135      3.3356)
    kT2 [keV]   : 58.8525        (-28.9525      -58.9333)
    R2^2/D10^2  : 8.42015E-03    (-0.00734219   0.0466463)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   57.76     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.74e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.760e-09   4.331e-09
    25- 50  1.963e-08   1.050e-08
    50-150  5.894e-08   3.359e-08
    15-150  8.633e-08   4.721e-08
    

    Peak spectrum fit

    Power-law model
    Time interval is from   -0.436 sec. to    0.564 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.976207     ( -0.439419   0.398064 )
    Norm@50keV  : 8.76991E-03    ( -0.00171407   0.00166332 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   58.92     using 59 bins.
     Reduced chi-squared = 1.03368
    # Null hypothesis probability of 4.05e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 1.00848 ( -0.19745  0.19759 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.56643e-08 ( -2.01377e-08  2.02615e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   -0.436 sec. to    0.564 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.29725     ( -0.641121   0.526295 )
    Epeak [keV] : 99.7229      (   )
    Norm@50keV  : 1.56079E-03    (     )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   56.17     using 59 bins.
     Reduced chi-squared = 1.00304
    # Null hypothesis probability of 4.69e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 1.02016 ( -0.229012  0.20229 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 9.54729e-08 ( -2.00297e-08  2.03462e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from   -0.436 sec. to    0.564 sec.
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 31.8504  (-12.5419  32.3717)
    R^2/D10^2   : 1.13931E-02  (-0.0090296   0.0373096)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   73.13     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 7.37e-02 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.742e-09   9.610e-10
    25- 50  1.100e-08   5.331e-09
    50-150  7.683e-08   4.140e-08
    15-150  8.957e-08   3.878e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-61.261      -200)
    Norm        : 4.11882       (-0.803138     0.803138)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   66.40     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 1.85e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.026e-08   6.045e-09
    25- 50  1.974e-08   1.154e-08
    50-150  4.329e-08   2.443e-08
    15-150  7.329e-08   4.185e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.06106        (-2.85015      4.23094)
    R1^2/D10^2  : 0.688387        (-0.518784      2.09245)
    kT2 [keV]   : 199.068        (-151.009      -199.076)
    R2^2/D10^2  : 2.83823E-04    (-7.45807e-05   0.00329957)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   53.46     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.34e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.804e-09   5.160e-09
    25- 50  1.683e-08   9.535e-09
    50-150  8.053e-08   7.275e-08
    15-150  1.062e-07   9.300e-08
    

    Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

    Power-law model
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.18675     ( -0.203151   0.203339 )
    Norm@50keV  : 4.65864E-02    ( -0.00541008   0.00539567 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   59.17     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.96e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 0.188 sec: 5.45831 ( -0.629358  0.629547 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.91919e-08 ( -1.21114e-08  1.22581e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.18263     ( -0.609631   0.247851 )
    Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
    Norm@50keV  : 4.68133E-02    ( -0.00544659   0.00537414 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   59.17     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 3.61e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 0.188 sec: 5.45879 (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.90569e-08 ( -1.21416e-08  1.22967e-08 ) ergs/cm2
     
    
    Band function
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    

    S(25-50 keV) vs. S(50-100 keV) plot

    S(25-50 keV)  = 1.86e-08
    S(50-100 keV) = 3.27e-08
    

    T90 vs. Hardness ratio plot

    T90                                   = 0.139999985694885 sec.
    Hardness ratio (energy fluence ratio) = 1.75806
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.69248
    Count Ratio (50-100 keV) / (15-25 keV) = 1.35178
    

    Mask shadow pattern

    IMX = 3.417609168478940E-01, IMY = -2.558530639837800E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.032000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.032000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.032000
    

    Spacecraft aspect plot

    Bright source in the pre-burst/pre-slew/post-slew images

    Pre-burst image of 15-350 keV band

    Time interval of the image:
    -239.984000 -0.032000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    299.5744  35.1758    0.7  33.2  129.6   9.7400  16.1    1.7	Cyg X-1                       
    308.0342  40.9487    3.8  30.0  145.3   1.3673   3.1    3.5	Cyg X-3                       
    326.0180  38.2331    6.0  19.6  168.4   0.6226   1.9    9.0	Cyg X-2                       
     19.0880  57.4948    2.8  50.7 -145.3   3.5333   4.1 ------	UNKNOWN                       
     10.1375   1.6883    3.3  40.6  -63.9   3.0966   3.6 ------	UNKNOWN                       
    

    Pre-slew background subtracted image of 15-350 keV band

    Time interval of the image:
    -0.032000 0.156000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    299.4524  35.2097    5.0  33.3  129.6  -0.0327  -2.3    6.8	Cyg X-1                       
    308.0700  40.7865    4.9  29.9  145.1  -0.0279  -2.3   10.1	Cyg X-3                       
    326.1001  38.4495    6.1  19.7  168.8   0.0149   1.9    8.4	Cyg X-2                       
    293.3220  28.7472    2.5  37.0  116.7   0.0862   4.6 ------	UNKNOWN                       
    320.7590  -0.2603    0.8  23.1   36.8   0.1394  14.8 ------	UNKNOWN                       
    319.8144  67.2746    2.7  48.4  177.9   0.0716   4.2 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    67.516660 302.276000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    288.6711  10.8163    8.6  33.8  120.6   0.3599   1.3   10.8	GRS 1915+105                  
    299.6085  35.2210    2.6  40.6  163.5   1.2262   4.4    1.5	Cyg X-1                       
    308.1995  40.8787    5.9  42.7  176.4   0.4919   2.0    6.0	Cyg X-3                       
    326.1764  38.2599    4.8  38.8 -162.8  -0.4411  -2.4    3.7	Cyg X-2                       
    284.9220 -22.9139    2.8  41.6   64.9   2.1621   4.1 ------	UNKNOWN                       
    282.7342  -4.6448    3.4  38.3   93.3   1.6566   3.4 ------	UNKNOWN                       
    289.3734  -0.7333    3.1  31.4   99.4   0.8677   3.8 ------	UNKNOWN                       
    311.9058 -49.9852    2.3  50.3   17.9   1.8207   5.1 ------	UNKNOWN                       
    303.7415  -6.2773    2.3  18.1   80.6   0.8112   5.1 ------	UNKNOWN                       
    325.6039 -57.0358    2.7  56.9    7.4   3.5895   4.3 ------	UNKNOWN                       
    303.5186  44.3099    2.3  47.1  173.6   1.6037   5.0 ------	UNKNOWN                       
    343.5360  54.7341    2.5  58.0 -154.3   3.3290   4.6 ------	UNKNOWN                       
      0.5196  12.4091    2.8  41.4  -98.8   2.1881   4.0 ------	UNKNOWN                       
    
    Plot creation:
    Fri Nov 18 22:21:17 EST 2022