RXTE Galactic Center Observation

Observation Date:1999-08-30
Mission Day:2067j
Modified Julian Day: 51420.419
Mission times: 178625009.00- 178634271.00
Scan type:cross

Main Page: Observation List | Source List
Observation Page: Top | Commentary | Sources | Scan Light Curves
Map Page: Reconstructed Model | Residuals
Scan Light Curves: Parts 1 | 2 | 3 | 4

PCA Reconstructed model on 1999-08-30 (click a source)

1E1740.7-2942 (265.96,-29.75) 1E1743.1-2843 (266.58,-28.72) 2E1746.7-3225 (267.51,-32.43) 2S1742-294 (266.52,-29.52) 2S1803-245 (271.71,-24.59) 4U 1711-34 (258.58,-34.05) 4U 1728-34 (262.99,-33.83) 4U 1746-371 (267.55,-37.05) 4U 1820-30 (275.93,-30.37) A1744-361 (267.08,-36.12) AX J1749.1-2639 (267.30,-26.65) EXO 1722-363 (261.48,-36.41) EXO 1742-326 (266.37,-32.69) EXO 1745-248 (267.02,-24.78) GCRT J1745-3009 (266.27,-30.16) GCRT J1746-2757 (266.54,-27.95) GRS 1734-292 (264.35,-29.18) GRS 1747-312 (267.69,-31.29) GRS 1758-258 (270.30,-25.74) GS 1826-238 (277.36,-23.79) GX 1+4 (263.01,-24.75) GX 3+1 (266.98,-26.56) GX 5-1 (270.28,-25.08) GX 9+1 (270.38,-20.53) H1743-322 (266.57,-32.24) IGR J17191-2821 (259.77,-28.35) IGR J17375-3022 (264.39,-30.38) IGR J17497-2821 (267.40,-28.36) IGR J17586-2129 (269.64,-21.39) K1724-356 (261.91,-35.73) KS 1731-260 (263.55,-26.09) KS 1732-273 (264.00,-27.44) KS 1741-293 (266.20,-29.35) MXB 1730-33 (263.35,-33.39) OPH CLU (258.16,-23.39) R 1832-330 (278.93,-32.99) RXJ1709.5-263 (257.38,-26.66) RXS J172006.1 (260.03,-31.28) RXS J172525.5 (261.36,-32.95) RXS J173251.1 (263.21,-34.79) RXS J175428.3 (268.62,-26.34) RXS J180326.2 (270.84,-25.27) RXS J180824.5 (272.10,-23.15) SAXJ1747.0-2853 (266.79,-28.88) SAXJ1750.8-2900 (267.60,-29.03) SAXJ1753.5-2349 (268.39,-23.82) SAXJ1802.7-2017 (270.67,-20.29) SAXJ1805.5-2031 (271.39,-20.51) SAXJ1806.5-2215 (271.64,-22.25) SAXJ1808.4-365P (271.12,-35.50) SAXJ1810.8-2609 (272.69,-26.15) SGR 1806-20 (272.16,-20.41) SGR A (266.40,-29.00) SLX 1735-269 (264.56,-27.00) SLX 1737-282 (265.24,-28.31) SLX 1744-300 (266.86,-30.04) SLX 1746-331 (267.46,-33.20) SW J1729.9-3437 (262.54,-34.61) SW J1756.9-2508 (269.24,-25.11) TERZAN 2 (261.89,-30.80) WGAJ1715.3-2635 (258.84,-26.60) XTE J1710-281 (257.55,-28.12) XTE J1710-281P (258.55,-28.91) XTE J1719-291 (259.89,-29.06) XTE J1719-356 (259.97,-35.68) XTE J1720-318 (260.00,-31.75) XTE J1723-376 (260.90,-37.65) XTE J1726-283 (261.66,-28.30) XTE J1728-295 (262.16,-29.52) XTE J1734-234 (263.53,-23.36) XTE J1737-376 (264.50,-37.77) XTE J1739-285 (264.98,-28.48) XTE J1739-302 (264.75,-30.27) XTE J1743-363 (265.74,-36.33) XTE J1744-230 (266.04,-23.12) XTE J1747-274 (266.91,-27.44) XTE J1748-288 (267.02,-28.47) XTE J1751-305 (267.81,-30.62) XTE J1752-223 (268.04,-22.32) XTE J1752-280 (268.20,-28.00) XTE J1755-312 (268.78,-31.16) XTE J1756-342 (269.02,-34.21) XTE J1757-306 (269.41,-30.66) XTE J1759-220 (269.94,-22.03) XTE J1805-295 (271.40,-29.52) XTE J1807-294 (271.74,-29.40) XTE J1812-230 (273.20,-23.00) XTE J1814-338 (273.41,-33.77) XTE J1817-330 (274.43,-33.02) XTE J1818-245 (274.61,-24.54) XTE J1819-254 (274.83,-25.41) XTE J1819-254P (273.83,-26.41)

Commentary

Craig Markwardt writes:

Here are the reports of the galactic bulge scans of 25 & 30 Aug 1999
(days 2062 and 2067).  

The processing of day 2062 was delayed as I dealt with a flare as
described below:

 > We detected something peculiar in our most recent scan of the galactic
 > bulge today, 25 Aug 1999 (day 2062).
 > 
 > A fairly bright source appeared near the galactic center (approx
 > coordinates below).  The intensity was about 1500 ct/s/5PCU (2-13keV)
 > = 150 mCrab.  The peculiar thing is that it didn't show up in the
 > neighboring scans, so of course it screwed up the fitting process.  It
 > also means that it was just a short flare of a few hundred seconds or
 > less, perhaps a long-lived burst?  
 > 
 > Jean, if you have simultaneous WFC coverage, it would be interesting
 > to see if you can confirm.  The time was MJD 51415.5897; 25 Aug 1999
 > 14:09 UT.
 > 
 >                  RA         DEC    RATE
 > XTE J1745-302  266.4400  -30.2000  1500    

The flare was seen in only a single scan so I had to rework some of
the pipeline processing to accomodate such a variable source.
[Otherwise, all scans are fitted jointly].  The new best position is

XTE J1745-302  266.4400  -30.0800  2100

The declination is probably good to 0.05 degree.  However, as you may
know the error box for XTE scans is much larger on the axis transverse
to the scan direction.  Therefore, the RA is known to only a degree or
so.  Given those facts, I would argue that this burst is most
consistently explained as coming from either SLX 1744-300 or -299 (I
cannot really distinguish the two with the PCA).

In that case, the measured peak flux, corrected for collimator
response, is about 330 mCrab.  There also seems to be some residual
counts in the persistent source of about 100 mCrab but this would not
be unexpected.

The reconstructed flux of SLX 1744-300/299 appears to have returned to
its persistent level this week.

Another event of note:

 * XTE J1819-254 is currently at a low point of about 2-3 mCrab, the
   lowest in the past six months.


Craig


Known Sources: ASCII table

SourceTime (MJD)RA (2000)DEC (2000)Rate (ct/s/5PCU)Error (ct/s/5PCU)Bkg (ct/s/5PCU)
1E1740.7-2942 51420.477 265.9604 -29.75 275.92 29.70 245.68
1E1743.1-2843 51420.491 266.5792 -28.72 67.09 76.77 324.02
2E1746.7-3225 51420.444 267.5144 -32.43 17.98 4.47 17.22
2S1742-294 51420.478 266.5230 -29.52 303.24 41.15 405.01
2S1803-245 51420.506 271.7090 -24.59 1.97 5.43 14.55
4U_1711-34 51420.443 258.5800 -34.05 32.53 0.96 9.44
4U_1728-34 51420.441 262.9920 -33.83 1211.53 17.79 39.70
4U_1746-371 51420.422 267.5523 -37.05 548.92 11.55 4.47
4U_1820-30 51420.439 275.9280 -30.37 2087.62 46.10 3.16
4U_1820-30 51420.446 275.9280 -30.37 1930.01 19.99 3.16
A1744-361 51420.427 267.0800 -36.12 -4.84 3.42 18.08
AX_J1749.1-2639 51420.500 267.3000 -26.65 89.68 25.26 1738.31
EXO_1722-363 51420.429 261.4810 -36.41 24.19 2.76 20.10
EXO_1742-326 51420.444 266.3690 -32.69 41.74 5.75 19.62
EXO_1745-248 51420.510 267.0208 -24.78 1.97 2.85 16.53
GCRT_J1745-3009 51420.465 266.2708 -30.16 8.57 17.61 349.23
GCRT_J1746-2757 51420.494 266.5417 -27.95 59.14 19.04 44.00
GRS_1734-292 51420.491 264.3533 -29.18 41.77 4.92 21.90
GRS_1747-312 51420.448 267.6900 -31.29 5.84 3.96 20.23
GRS_1758-258 51420.501 270.3025 -25.74 156.59 14.30 3938.86
GS_1826-238 51420.504 277.3623 -23.79 337.32 1.95 3.50
GX_1+4 51420.510 263.0090 -24.75 55.52 77.16 5.52
GX_1+4 51420.514 263.0090 -24.75 293.05 9.06 5.52
GX_1+4 51420.517 263.0090 -24.75 113.39 5.80 5.52
GX_3+1 51420.498 266.9830 -26.56 2470.18 44.97 93.87
GX_3+1 51420.503 266.9830 -26.56 2412.85 28.88 93.87
GX_5-1 51420.502 270.2840 -25.08 14092.15 103.82 97.11
GX_5-1 51420.506 270.2840 -25.08 13828.31 53.24 97.11
GX_9+1 51420.524 270.3846 -20.53 6643.84 85.88 24.14
H1743-322 51420.445 266.5700 -32.24 6.45 6.33 39.03
IGR_J17191-2821 51420.500 259.7700 -28.35 5.70 3.95 4.44
IGR_J17375-3022 51420.468 264.3946 -30.38 18.55 7.07 22.26
IGR_J17497-2821 51420.492 267.4041 -28.36 61.15 25.41 15.37
IGR_J17586-2129 51420.523 269.6440 -21.39 7.93 4.47 34.76
K1724-356 51420.432 261.9133 -35.73 -18.84 7.22 30.59
KS_1731-260 51420.507 263.5539 -26.09 697.93 11.27 9.05
KS_1732-273 51420.500 263.9958 -27.44 -1.81 4.24 43.87
KS_1741-293 51420.480 266.2042 -29.35 58.17 73.49 561.94
MXB_1730-33 51420.443 263.3498 -33.39 7.20 8.87 541.99
OPH_CLU 51420.522 258.1580 -23.39 674.00 18.95 3.11
RXJ1709.5-263 51420.511 257.3760 -26.66 4.12 0.59 3.16
RXS_J172006.1 51420.470 260.0254 -31.28 12.05 2.82 11.39
RXS_J172525.5 51420.446 261.3563 -32.95 29.05 5.60 15.47
RXS_J173251.1 51420.436 263.2129 -34.79 24.12 4.68 64.83
RXS_J175428.3 51420.500 268.6179 -26.34 -3.63 3.82 33.71
RXS_J180326.2 51420.503 270.8417 -25.27 83.21 15.10 5790.93
RXS_J180824.5 51420.513 272.1021 -23.15 11.93 3.07 13.78
R_1832-330 51420.426 278.9317 -32.99 79.91 1.14 3.10
SAXJ1747.0-2853 51420.491 266.7879 -28.88 236.90 70.10 219.71
SAXJ1750.8-2900 51420.482 267.6000 -29.03 38.67 12.00 68.87
SAXJ1753.5-2349 51420.513 268.3917 -23.82 5.78 3.82 17.04
SAXJ1802.7-2017 51420.524 270.6663 -20.29 17.98 137.29 4179.73
SAXJ1805.5-2031 51420.525 271.3917 -20.51 -8.72 10.11 360.68
SAXJ1806.5-2215 51420.519 271.6417 -22.25 3.99 2.62 20.84
SAXJ1808.4-365P 51420.426 271.1200 -35.50 0.70 2.29 3.39
SAXJ1810.8-2609 51420.497 272.6850 -26.15 -3.05 2.17 8.59
SGR_1806-20 51420.525 272.1642 -20.41 11.55 5.24 26.98
SGR_A 51420.491 266.4000 -29.00 134.42 86.21 406.74
SLX_1735-269 51420.501 264.5647 -27.00 107.89 5.26 14.54
SLX_1737-282 51420.494 265.2360 -28.31 33.84 10.97 40.22
SLX_1744-300 51420.465 266.8580 -30.04 238.37 13.69 172.88
SLX_1746-331 51420.441 267.4608 -33.20 11.97 4.25 14.90
SW_J1729.9-3437 51420.437 262.5375 -34.61 6.78 5.74 159.20
SW_J1756.9-2508 51420.506 269.2380 -25.11 19.53 8.80 686.27
TERZAN_2 51420.470 261.8880 -30.80 286.98 5.88 14.00
WGAJ1715.3-2635 51420.510 258.8370 -26.60 2.69 1.88 3.37
XTE_J1710-281 51420.500 257.5500 -28.12 62.72 1.09 3.34
XTE_J1710-281P 51420.495 258.5500 -28.91 14.70 9.81 4.03
XTE_J1719-291 51420.493 259.8890 -29.06 -1.27 4.16 6.84
XTE_J1719-356 51420.433 259.9700 -35.68 1.27 1.09 16.68
XTE_J1720-318 51420.462 259.9961 -31.75 4.99 6.16 15.57
XTE_J1723-376 51420.424 260.9000 -37.65 1.02 0.70 15.99
XTE_J1726-283 51420.498 261.6570 -28.30 0.46 6.87 8.19
XTE_J1728-295 51420.492 262.1570 -29.52 5.03 2.87 12.31
XTE_J1734-234 51420.521 263.5280 -23.36 12.37 2.66 4.74
XTE_J1737-376 51420.422 264.4950 -37.77 -1.83 3.06 7.62
XTE_J1739-285 51420.493 264.9790 -28.48 26.05 11.15 48.40
XTE_J1739-302 51420.469 264.7500 -30.27 -6.92 7.85 44.10
XTE_J1743-363 51420.427 265.7415 -36.33 25.14 3.30 8.05
XTE_J1744-230 51420.520 266.0350 -23.12 30.98 3.45 9.10
XTE_J1747-274 51420.497 266.9095 -27.44 61.60 17.10 280.61
XTE_J1748-288 51420.492 267.0210 -28.47 -148.78 50.63 281.66
XTE_J1751-305 51420.452 267.8062 -30.62 8.62 4.10 25.11
XTE_J1752-223 51420.521 268.0440 -22.32 5.08 3.92 12.49
XTE_J1752-280 51420.492 268.2000 -28.00 20.82 7.27 33.53
XTE_J1755-312 51420.448 268.7820 -31.16 19.05 3.85 14.77
XTE_J1756-342 51420.434 269.0228 -34.21 -1.21 2.56 5.73
XTE_J1757-306 51420.450 269.4130 -30.66 8.70 4.15 15.36
XTE_J1759-220 51420.520 269.9404 -22.03 -11.94 4.55 21.81
XTE_J1805-295 51420.453 271.4045 -29.52 6.32 4.50 6.63
XTE_J1807-294 51420.453 271.7441 -29.40 -1.26 4.35 11.11
XTE_J1812-230 51420.512 273.2000 -23.00 6.00 2.43 10.80
XTE_J1814-338 51420.429 273.4126 -33.77 1.36 2.53 3.20
XTE_J1817-330 51420.433 274.4250 -33.02 -0.95 2.03 3.16
XTE_J1818-245 51420.498 274.6050 -24.54 5.68 2.20 7.68
XTE_J1819-254 51420.497 274.8300 -25.41 24.05 0.86 5.30
XTE_J1819-254P 51420.494 273.8300 -26.41 7.69 5.67 5.63

Scan Light Curve

Light Curve - Day 2067j - Part 1

Legend
--------------------------
 11 - XTE J1723-376   
 12 - EXO 1722-363    
 17 - SW J1729.9-3437 
 18 - 4U 1728-34      
 20 - RXS J173251.1   
 35 - XTE J1743-363   
 59 - SLX 1746-331    
 61 - 4U 1746-371     
 96 - XTE J1814-338   
103 - 4U 1820-30      
105 - R 1832-330      
Light Curve - Day 2067j - Part 2

Legend
--------------------------
  4 - 4U 1711-34      
  9 - XTE J1720-318   
 10 - RXS J172006.1   
 13 - RXS J172525.5   
 15 - TERZAN 2        
 18 - 4U 1728-34      
 22 - MXB 1730-33     
 28 - IGR J17375-3022 
 36 - 1E1740.7-2942   
 38 - KS 1741-293     
 39 - GCRT J1745-3009 
 40 - EXO 1742-326    
 42 - 2S1742-294      
 45 - H1743-322       
 48 - SLX 1744-300    
 59 - SLX 1746-331    
 60 - 2E1746.7-3225   
 62 - SAXJ1750.8-2900 
 63 - GRS 1747-312    
 65 - XTE J1751-305   
 71 - XTE J1755-312   
 74 - XTE J1757-306   
 83 - XTE J1805-295   
103 - 4U 1820-30      
195 - 4U 1820-30      
Light Curve - Day 2067j - Part 3

Legend
--------------------------
  0 - RXJ1709.5-263   
  1 - XTE J1710-281   
  2 - XTE J1710-281P  
  5 - WGAJ1715.3-2635 
  6 - IGR J17191-2821 
 10 - RXS J172006.1   
 15 - TERZAN 2        
 16 - XTE J1728-295   
 25 - KS 1731-260     
 27 - GRS 1734-292    
 28 - IGR J17375-3022 
 30 - SLX 1735-269    
 32 - XTE J1739-285   
 33 - SLX 1737-282    
 36 - 1E1740.7-2942   
 38 - KS 1741-293     
 39 - GCRT J1745-3009 
 41 - SGR A           
 42 - 2S1742-294      
 43 - GCRT J1746-2757 
 44 - 1E1743.1-2843   
 46 - SAXJ1747.0-2853 
 48 - SLX 1744-300    
 50 - XTE J1747-274   
 51 - GX 3+1          
 57 - AX J1749.1-2639 
 58 - IGR J17497-2821 
 62 - SAXJ1750.8-2900 
 68 - XTE J1752-280   
 73 - SW J1756.9-2508 
 77 - GX 5-1          
 78 - GRS 1758-258    
 81 - RXS J180326.2   
 86 - 2S1803-245      
100 - XTE J1818-245   
101 - XTE J1819-254   
102 - XTE J1819-254P  
104 - GS 1826-238     
193 - GX 3+1          
194 - GX 5-1          
Light Curve - Day 2067j - Part 4

Legend
--------------------------
  0 - RXJ1709.5-263   
  3 - OPH CLU         
  5 - WGAJ1715.3-2635 
 19 - GX 1+4          
 24 - XTE J1734-234   
 25 - KS 1731-260     
 37 - XTE J1744-230   
 53 - EXO 1745-248    
 67 - XTE J1752-223   
 69 - SAXJ1753.5-2349 
 73 - SW J1756.9-2508 
 75 - IGR J17586-2129 
 79 - GX 9+1          
 80 - SAXJ1802.7-2017 
 85 - SAXJ1806.5-2215 
 87 - RXS J180824.5   
 90 - SGR 1806-20     
 95 - XTE J1812-230   
191 - GX 1+4          
192 - GX 1+4          
194 - GX 5-1          

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Generated automatically on Fri Mar 18 23:00:42 2011 by Craig Markwardt