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Swift/BAT Hard X-ray Transient Monitor

Please Read Before Using These Results:README

Main page

Data current through 15:31 UT, August 30 (DOY 242), 2014

Sources are considered detected and added to this page under the following circumstances

  • The rate for the current day is at least 40 mCrab (1 mCrab = 0.000218 ct/cm2/sec) AND the significance is at least 2-sigma
  • -OR- The rate for the previous day is at least 40 mCrab AND the significance is at least 2-sigma
  • -OR- The average rate for the last ten days is at least 12 mCrab AND the significance is at least 2-sigma.
  • Swift/BAT Transient Sources (Currently Detected)

    Source Name RA J2000 Degs Dec J2000 Degs Alternate Name Source Type Today# Yesterday# Tenday# Mean* Peak* Days* Last Day*
    1 GRS 1915+105   288.798 10.9460V1487 Aql LMXB/BH 200 (24.0) 218 (22.1) 280 (73.0) 152 685 299354217 ( 2682)
    2 Cyg X-3   308.107 40.9580V1521 Cyg HMXB 156 (21.7) 172 (20.9) 148 (62.0) 109 290 288256415 ( 484)
    3 Cyg X-1   299.591 35.2020V1357 Cyg HMXB/BH 113 (18.7) 31 ( 5.6) 100 (46.7) 169 1717 323254140 ( 2759)
    4 Ginga 1826-238   277.368 -23.7970V4634 Sgr LMXB/NS 103 (10.0) 109 (12.3) 91 (41.7) 68 137 262754345 ( 2554)
    5 H 1820-303   275.919 -30.36104U 1820-30 LMXB/NS 67 ( 6.7) 72 ( 9.4) 50 (25.5) 54 164 236754986 ( 1913)
    6 GX 17+2   274.006 -14.0360NP Ser LMXB/NS 63 ( 7.5) 128 (16.0) 82 (40.1) 77 245 277053536 ( 3363)
    7 Cyg X-2   326.172 38.3220V1341 Cyg LMXB/NS 59 (11.3) 56 (10.5) 53 (31.4) 36 80 204455687 ( 1212)
    8 4U 1822-371   276.445 -37.1053V691 CrA LMXB/NS 47 ( 5.0) 33 ( 4.4) 32 (16.5) 33 63 166853461 ( 3438)
    9 GX 13+1   273.630 -17.1570V5512 Sgr LMXB/NS 43 ( 5.0) 15 ( 2.3) 16 ( 8.8) 20 58 64653610 ( 3289)
    10 KS 1947+300   297.390 30.21302MASS J19493548+3012317 HMXB/NS 41 ( 8.1) 38 ( 6.6) 18 ( 9.9) 2 322 13356620 ( 279)
    11 H 1907+097   287.408 9.830004U 1907+09 HMXB/NS 37 ( 8.3) 20 ( 3.4) 18 ( 9.5) 12 60 22355810 ( 1089)
    12 SAX J2103.5+4545   315.899 45.7520GSC 03588-00834 HMXB 33 ( 7.1) 40 ( 7.1) 19 (12.6) 3 170 13154218 ( 2681)
    13 HT1900.1-2455   285.036 -24.9205HETE J1900.1-2455 LMXB/msPSR 27 ( 3.5) 27 ( 3.5) 32 (15.1) 22 65 92155066 ( 1833)
    14 XTE J1855-026   283.877 -2.605002MASS J18553040-0236167 HMXB/NS 20 ( 4.3) 17 ( 2.6) 17 ( 9.2) 10 52 12954262 ( 2637)
    15 4U 1909+07   287.701 7.598004U 1908+075 HMXB/NS 19 ( 4.2) 24 ( 3.9) 17 ( 9.2) 14 73 20455151 ( 1748)
    16 Ser X-1   279.990 5.03600MM Ser LMXB/NS 18 ( 4.6) 22 ( 3.7) 18 (10.1) 16 44 30453435 ( 3464)
    17 4U 1812-12   273.776 -12.0960LMXB/NS - 23 ( 3.6) 26 (14.3) 26 91 108553787 ( 3112)
    18 GS 1843-02   282.074 -2.42030X 1845-024 NULL -- 12 ( 6.8) 1 83 656396 ( 503)
    19 QSO B2255-2814   344.525 -27.9726ICRF J225805.9-275821 Sy1 - 46 ( 2.1)- 0---
    Source NameRA J2000 DegsDec J2000 DegsAlternate NameSource TypeToday#Yesterday#Tenday#Mean*Peak*Days*Last Day*
    # Explanation of table headings 7-9:
  • Today: Todays source rate in units of mCrab (Significance in parentheses)
  • Yesterday: Yesterdays source rate in units of mCrab (Significance in parentheses)
  • Tenday: Average source rate over the last ten days (Significance in parentheses)
  • All of these are only posted if the significance is >= 2-sigma.

    * Explanation of last four table headings:

  • Mean: Mean source rate in units of mCrab
  • Peak: Peak source rate in units of mCrab (also requires >5-sigma significance)
  • Days: Number of days with >5-sigma source detection
  • Last Day: MJD of last 5-sigma detection (Days since last detection)
  • -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      GRS 1915+105                  GRS 1915+105
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10007] GRS 1915+105 RA= 288.798 degs; Dec= 10.9460 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      Cyg X-3                       Cyg X-3
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10038] Cyg X-3 RA= 308.107 degs; Dec= 40.9580 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      Cyg X-1                       Cyg X-1
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10002] Cyg X-1 RA= 299.591 degs; Dec= 35.2020 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      Ginga 1826-238                Ginga 1826-238
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10311] Ginga 1826-238 RA= 277.368 degs; Dec= -23.7970 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      H 1820-303                    H 1820-303
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10076] H 1820-303 RA= 275.919 degs; Dec= -30.3610 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      GX 17+2                       GX 17+2
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10049] GX 17+2 RA= 274.006 degs; Dec= -14.0360 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      Cyg X-2                       Cyg X-2
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10037] Cyg X-2 RA= 326.172 degs; Dec= 38.3220 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      4U 1822-371                   4U 1822-371
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10593] 4U 1822-371 RA= 276.445 degs; Dec= -37.1053 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      GX 13+1                       GX 13+1
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10319] GX 13+1 RA= 273.630 degs; Dec= -17.1570 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      KS 1947+300                   KS 1947+300
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10571] KS 1947+300 RA= 297.390 degs; Dec= 30.2130 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      H 1907+097                    H 1907+097
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10078] H 1907+097 RA= 287.408 degs; Dec= 9.83000 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      SAX J2103.5+4545              SAX J2103.5+4545
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10572] SAX J2103.5+4545 RA= 315.899 degs; Dec= 45.7520 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      HT1900.1-2455                 HT1900.1-2455
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10557] HT1900.1-2455 RA= 285.036 degs; Dec= -24.9205 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      XTE J1855-026                 XTE J1855-026
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10566] XTE J1855-026 RA= 283.877 degs; Dec= -2.60500 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      4U 1909+07                    4U 1909+07
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10561] 4U 1909+07 RA= 287.701 degs; Dec= 7.59800 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      Ser X-1                       Ser X-1
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10304] Ser X-1 RA= 279.990 degs; Dec= 5.03600 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      4U 1812-12                    4U 1812-12
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [10329] 4U 1812-12 RA= 273.776 degs; Dec= -12.0960 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      GS 1843-02                    GS 1843-02
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [34059] GS 1843-02 RA= 282.074 degs; Dec= -2.42030 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------
      QSO B2255-2814                QSO B2255-2814
    Dashed lines show average rate (and +/- 1 sigma standard deviation) for this source (derived from this plot)
    [30212] QSO B2255-2814 RA= 344.525 degs; Dec= -27.9726 degs
    Daily light curves: FITS version ASCII version
    Orbit light curves: FITS version ASCII version
    Full mission light curve

    This page was last modified on Sun Aug 31 02:23:26 UTC 2014

    The BAT Transient Monitor contact is:
    Hans Krimm, hans.krimm@nasa.gov,
    301-286-6955