batgrbproduct analysis for trigger=1219986

batgrbproduct Analysis for Trigger=1219986

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done of the amount of data for this trigger downloaded to date.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
4) This page will be updated for up to 15 downlinks after the trigger.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Mar 14 07:57:59 EDT 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1219986/GCN5_download_cron
======================================================================

  Trigger: 01219986      Segment: 000

  BAT Trigger Time: 732059488   [s; MET]
      Trigger Stop: 732059552   [s; MET]
               UTC: 2024-03-13T21:50:54.919120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 84.5833008408023   Dec: 21.7695238091282  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.77
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    11.77

  Flight Position:   [ source = BAT ]
    RA: 84.5833008408023   Dec: 21.7695238091282  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 84.5581424464842   Dec: 21.7840038966724  [deg; J2000]  
        { 05h 38m 14.0s , +21d 47' 02.4" }
         +/- 1.89789185773191 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.901431908522315 [arcmin] (formal 1-sigma fit error)
    SNR: 12.1783294679978
 
  Angular difference between Flight and Ground position is 1.649185 arcmin
 
  Partial Coding Fraction: 0.6015625    [ including projection effects ]

  Duration
     T90: 147.703999996185 +/- 220.945818177068
        Measured from: -27.2959998846054
                   to: 120.40800011158     [s; relative to TRIGTIME]
     T50: 78.1599999666214 +/- 15.2922386030426
        Measured from: 3.3840000629425
                   to: 81.5440000295639     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -11.8400000333786     
                   to: -10.8400000333786     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -36.9079999923706     
                   to: 341.128000020981     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.301877   1.892742   0.736535   0.017756
           0.156644   0.168072   0.147009   0.149457 [error]
 Peak      0.031115   0.020030   0.022844   0.012842
           0.009030   0.009305   0.007843   0.006859 [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 7.54e-07 8.38e-07 6.65e-07 8.74e-07 2.58e-06 3.13e-06   erg/cm2
              Error 9.71e-08 8.56e-08 1.39e-07 3.52e-07 3.08e-07 5.24e-07   erg/cm2
Peak flux Power-law 2.69e-01 2.40e-01 1.48e-01 1.38e-01 7.16e-01 7.95e-01   ph/cm2/s
              Error 1.36e-01 7.64e-02 6.69e-02 1.14e-01 2.24e-01 2.49e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.55e-07 8.38e-07 6.64e-07 8.62e-07 2.58e-06 3.12e-06   erg/cm2
              Error 9.85e-08 9.64e-08 1.47e-07 2.66e-07 3.36e-07 6.35e-07   erg/cm2
Peak flux Cutoff-PL 2.76e-01 2.41e-01 1.44e-01 1.30e-01 7.17e-01 7.94e-01   ph/cm2/s
              Error 1.38e-01 7.56e-02 6.73e-02 1.60e-01 2.24e-01 2.50e-01   ph/cm2/s
 
Fluence        Band 1.63e-06 2.28e-06 2.06e-06 3.21e-06 7.06e-06 9.13e-06   erg/cm2
              Error -------- -------- -------- -------- 1.00e-06 --------   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    2.333    0.214    -      -           7.22e-04 1.08e-04   82.410 57
CPL   1.990   -0.718       1.2   13.3      1.14e-03 0.00e+00   83.080 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.704    0.616    -      -           5.38e-03 1.88e-03   54.400 57
CPL   1.721    0.619    9999.4   -0.0      5.33e-03 4.04e-02   54.410 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: 120.896000 sec.
T50 in the 50-300 keV band: 35.520000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  378.036  -36.908  341.128
T90   147.704  -27.296  120.408
T50    78.160    3.384   81.544
Peak    1.000  -11.840  -10.840

Click here for the BAT GCN circular template

Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minutes to calcaulte

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   84.5581 +21.7840 0.0158   34.4   17.5       2.9585    12.2  TRIG_01219986       
------------------------------------------
 
Foreground time interval of the image:
-12.899  49.510 (delta_t =  62.409 [sec])
 51.000  70.501 (delta_t =  19.501 [sec])
Background time interval of the image:

Lightcurves

Notes:

1) All plots contain as much data as has been downloaded to date.
2) The mask-weighted light curves are using the flight position.
3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
4) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
5) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
6) Time of each bin is in the middle of the bin.

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 64.000000

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 64.000000

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 64.000000

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

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

Spectra

Notes:

1) The fitting includes the systematic errors.
2) For long bursts, a spectral fit of the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.
4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.

Time averaged spectrum fit using the pre-slew DRM

Power-law model

Multiple GTIs in the spectrum
tstart tstop
-36.908000 49.510000
51.000000 164.620000
167.000000 233.780000
236.000000 341.128000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.33266     ( -0.205913   0.222637 )
Norm@50keV  : 7.21561E-04    ( -0.000108904   0.000106479 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.41 using 59 PHA bins.
# Reduced chi-squared =          1.446 for     57 degrees of freedom 
# Null hypothesis probability =   1.548343e-02
 
Photon flux (15-150 keV)    in 371.9 sec: 0.128431 ( -0.0121291  0.0121308 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.58044e-06 ( -3.03959e-07  3.1279e-07 ) ergs/cm2

Cutoff power-law model

Multiple GTIs in the spectrum
tstart tstop
-36.908000 49.510000
51.000000 164.620000
167.000000 233.780000
236.000000 341.128000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.99026     ( -0.553849   -1.99026 )
Epeak [keV] : 1.17497      ( -0.524317 26.0806 )
Norm@50keV  : 1.13826E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          83.08 using 59 PHA bins.
# Reduced chi-squared =          1.484 for     56 degrees of freedom 
# Null hypothesis probability =   1.086226e-02
 
Photon flux (15-150 keV)    in 371.9 sec: 0.128409 ( -0.012135  0.012096 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.57867e-06 ( -3.57322e-07  3.14743e-07 ) ergs/cm2

Band function

Multiple GTIs in the spectrum
tstart tstop
-36.908000 49.510000
51.000000 164.620000
167.000000 233.780000
236.000000 341.128000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -2.36426   ( 2.36426   2.36426 )
beta        : -2.33266    ( -0.222636   0.206098 )
Epeak [keV] : 1.91496      ( -1.91496 -1.91496 )
Norm@50keV   : 9.80703E-02    ( -0.0148015   0.0144721 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.41 using 59 PHA bins.
# Reduced chi-squared =          1.498 for     55 degrees of freedom 
# Null hypothesis probability =   9.766487e-03
 
Photon flux (15-150 keV)    in 371.9 sec: 0.128395 ( 6.8716  -0.012116 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.0626e-06 ( -7.06e-06  -9.72481e-07 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 7.90251  (-0.962898  1.05899)
R^2/D10^2   : 0.140539  (-0.0557041   0.0980093)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         110.97 using 59 PHA bins.
# Reduced chi-squared =         1.9469 for     57 degrees of freedom 
# Null hypothesis probability =   2.470644e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.848e-07   1.015e-07
25- 50  1.002e-06   1.491e-07
50-150  2.526e-07   8.344e-08
15-150  1.839e-06   2.336e-07

Thermal bremsstrahlung (OTTB)

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 40.5520       (-9.83176      14.6795)
Norm        : 0.808643       (-0.151552     0.200953)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.937e-07   8.163e-08
25- 50  9.181e-07   1.030e-07
50-150  7.210e-07   2.164e-07
15-150  2.333e-06   3.120e-07

Double BB

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.17301        (-1.15926      1.57587)
R1^2/D10^2  : 1.52630        (-1.09412      5.55206)
kT2 [keV]   : 14.8731        (-4.01059      10.4151)
R2^2/D10^2  : 8.02970E-03    (-0.00703602   0.0232767)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.699e-07   3.887e-07
25- 50  8.028e-07   2.909e-07
50-150  8.228e-07   4.549e-07
15-150  2.396e-06   9.125e-07

Peak spectrum fit

Power-law model

Time interval is from  -11.840 sec. to  -10.840 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70368     ( -0.586386   0.64506 )
Norm@50keV  : 5.38075E-03    ( -0.00195602   0.00181271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.40 using 59 PHA bins.
# Reduced chi-squared =         0.9544 for     57 degrees of freedom 
# Null hypothesis probability =   5.732207e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.715547 ( -0.223803  0.224505 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.98048e-08 ( -1.78579e-08  1.84533e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from  -11.840 sec. to  -10.840 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.72146     ( -0.603904   0.634702 )
Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
Norm@50keV  : 5.32993E-03    ( -0.00537414   0.0755125 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.41 using 59 PHA bins.
# Reduced chi-squared =         0.9715 for     56 degrees of freedom 
# Null hypothesis probability =   5.354442e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.717280 ( -0.225675  0.222762 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.99578e-08 ( -1.80003e-08  1.79933e-08 ) ergs/cm2

Band function

Time interval is from  -11.840 sec. to  -10.840 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.47502   ( 1.47507   1.47507 )
beta        : -1.70359    ( 1.70367   0.586241 )
Epeak [keV] : 15.9571      ( -15.9426 -15.9426 )
Norm@50keV   : 1.06179E-02    ( -0.0106196   259.457 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.40 using 59 PHA bins.
# Reduced chi-squared =         0.9891 for     55 degrees of freedom 
# Null hypothesis probability =   4.975004e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.89906e-08 ( -1.89836e-08  -2.6149e-09 ) ergs/cm2

Single BB

 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.1498  (-4.53157  7.26125)
R^2/D10^2   : 0.122134  (-0.121058   0.436327)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.478e-09   2.847e-09
25- 50  1.561e-08   9.585e-09
50-150  1.718e-08   1.181e-08
15-150  3.728e-08   2.335e-08

Thermal bremsstrahlung (OTTB)

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 171.957       (-169.506      -169.506)
Norm        : 2.87760       (-0.918322     1.79254)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.122e-09   4.384e-09
25- 50  1.365e-08   8.220e-09
50-150  2.966e-08   1.775e-08
15-150  5.044e-08   3.006e-08

Double BB

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.00546        (-2.90692      9.55979)
R1^2/D10^2  : 8.05728        (-7.81041      20510.9)
kT2 [keV]   : 19.5236        (-8.14173      -19.5246)
R2^2/D10^2  : 2.48672E-02    (-0.0245416   0.162573)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.221e-09   5.555e-09
25- 50  1.171e-08   6.430e-09
50-150  2.548e-08   1.716e-08
15-150  4.642e-08   2.597e-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: 2.00427     ( -0.153348   0.159152 )
Norm@50keV  : 2.21114E-03    ( -0.000221717   0.000217363 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          88.32 using 59 PHA bins.
# Reduced chi-squared =          1.549 for     57 degrees of freedom 
# Null hypothesis probability =   4.916130e-03
 
Photon flux (15-150 keV)    in 81.91 sec: 0.332324 ( -0.0266906  0.026715 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.6706e-06 ( -1.56474e-07  1.58733e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97028     ( -0.577498   0.163707 )
Epeak [keV] : 37.3366      ( -35.5485 -37.3366 )
Norm@50keV  : 2.31230E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          88.31 using 59 PHA bins.
# Reduced chi-squared =          1.577 for     56 degrees of freedom 
# Null hypothesis probability =   3.811558e-03
 
Photon flux (15-150 keV)    in 81.91 sec: 0.331648 ( -0.02762  0.027196 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.6617e-06 ( -1.80005e-07  1.66064e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.10380   ( -4.1038   -4.1038 )
beta        : -2.07662    ( -0.220895   0.17858 )
Epeak [keV] : 20.9722      ( -20.9722 104.928 )
Norm@50keV   : 212.107    ( -212.107   192.684 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          86.92 using 59 PHA bins.
# Reduced chi-squared =          1.580 for     55 degrees of freedom 
# Null hypothesis probability =   3.923978e-03
 
Photon flux (15-150 keV)    in 81.91 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.55552e-06 ( -1.55495e-06  -2.14186e-07 ) ergs/cm2

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

S(25-50 keV)  = 8.38e-07
S(50-100 keV) = 6.65e-07

T90 vs. Hardness ratio plot

T90                                   = 147.703999996185 sec.
Hardness ratio (energy fluence ratio) = 0.793556

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 0.82226
Count Ratio (50-100 keV) / (15-25 keV) = 0.319971

Mask shadow pattern

IMX = 6.536151710249707E-01, IMY = -2.057844062347819E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

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:
-12.899410 49.510000
51.000000 70.500600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.7643  21.8971   23.4  34.2   16.2  -0.1212  -0.5   10.1	Crab                          
 84.5593  21.7844    0.9  34.4   17.5   2.9539  12.3 ------	UNKNOWN                       
 42.3146  37.6701    2.0  55.2  -32.2   5.0592   5.8 ------	UNKNOWN

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

Time interval of the image:
-12.899410 49.510000
51.000000 70.500600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.7637  21.8972   37.9  34.2   16.2  -0.0748  -0.3   10.1	Crab                          
 84.5583  21.7840    0.9  34.4   17.5   2.9574  12.3 ------	UNKNOWN                       
 42.3146  37.6701    2.0  55.2  -32.2   5.0592   5.8 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
145.900590 164.620000
167.000000 233.780000
236.000000 363.039400
414.000000 431.170000
432.000000 460.540000
462.000000 530.970000
721.000000 753.280000
781.000000 783.130000
785.000000 785.130000
792.000000 843.070000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.7102  22.0039   44.2   0.8  -72.2   0.4573   0.3    4.3	Crab                          
117.1348  43.3205    2.8  34.5   46.1  11.9630   4.2 ------	UNKNOWN                       
 57.4310  13.0351    2.5  27.3 -101.8  11.5371   4.6 ------	UNKNOWN

Plot creation:
Thu Mar 14 08:02:22 EDT 2024