RXTE Galactic Center Observation

Observation Date:2001-03-21
Mission Day:2636t
Modified Julian Day: 51989.829
Mission times: 227822001.00- 227830913.00
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 2001-03-21 (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) H1743-322 (266.57,-32.24) IGR J17191-2821 (259.77,-28.35) IGR J17331-2406 (263.28,-24.11) IGR J17375-3022 (264.39,-30.38) IGR J17497-2821 (267.40,-28.36) IGR J17511-3057 (267.79,-30.96) 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) SAXJ1806.5-2215 (271.64,-22.25) SAXJ1808.4-3658 (272.12,-36.98) SAXJ1808.4-365P (271.12,-35.50) SAXJ1810.8-2609 (272.69,-26.15) 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 is a summary of the galactic bulge observations over the past two
months.  

* SAX J1750.0-2900 had a very short outburst near Mar 3, 2001,
  reaching a peak of 210 mCrab, but declining to < 10 mCrab within two
  weeks.  However the source has brightened again, to 30 mCrab.  This
  behavior is reminiscent of SAX J1747.

* A new faint source, XTE J1759-220 has become more prominent.  The
  best coordinates are (RA=269.854, DEC=-22.00).  The source really
  became obvious in Feb 2001 at about 8 mCrab, but I think we were
  actually seeing it at a lower level since the start of the
  monitoring observations.  I will need to reprocess to find out.  An
  interesting fact is that this source is near the putative SGR
  1800-23. The error box for this SGR is very long and thin.

* As covered in David Smith's recent article, GRS 1758-258 has "turned
  off."  The X-ray intensity had a precipitous drop around Feb 20 to
  ~5 mCrab from a more typical 20 mCrab, and appears to be
  subsequently declining further yet.

* KS 1731-260 has turned off!  The source had a remarkable segment of
  constant intensity in fall 2000 (normally fluctuates between 10-200
  mCrab). December 2000 and January 2001 the source was behind the
  sun, but when we observed it February 2001 the source was not
  detectable (< 0.7 mCrab).

* 4U 1820-30 has been at peak brightness over the past 2-3 weeks,
  around 600 mCrab.  This is about 20% brighter than ever seen in the
  past 2.5 years.

* After a trending incrase over the past 2.5 years, GX 3+1 appears to
  have flattened out around 400 mCrab within the past 6 months.

* The Rapid Burster had another outburst, from which was saw several
  X-ray bursts.

* We saw a very short outburst of XTE J1739-302, up to about 17 mCrab.
  In the next observation the source was <= 2 mCrab.  According to
  David Smith this kind of behavior has happened before.

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 51989.887 265.9604 -29.75 198.74 43.71 320.08
1E1743.1-2843 51989.901 266.5792 -28.72 120.55 106.29 250.27
2E1746.7-3225 51989.854 267.5144 -32.43 25.11 7.97 17.51
2S1742-294 51989.888 266.5230 -29.52 123.48 63.91 480.76
2S1803-245 51989.915 271.7090 -24.59 -9.06 7.83 14.28
4U_1711-34 51989.853 258.5800 -34.05 -3.08 1.14 9.86
4U_1728-34 51989.851 262.9920 -33.83 710.19 24.61 49.70
4U_1746-371 51989.832 267.5523 -37.05 318.57 14.99 5.06
4U_1820-30 51989.849 275.9280 -30.37 4076.36 87.03 3.58
4U_1820-30 51989.856 275.9280 -30.37 5271.08 53.70 3.58
A1744-361 51989.837 267.0800 -36.12 2.80 5.68 13.59
AX_J1749.1-2639 51989.910 267.3000 -26.65 195.74 47.44 3143.93
EXO_1722-363 51989.839 261.4810 -36.41 -6.50 3.84 23.58
EXO_1742-326 51989.854 266.3690 -32.69 34.97 9.17 22.71
EXO_1745-248 51989.920 267.0208 -24.78 1.82 4.62 16.96
GCRT_J1745-3009 51989.876 266.2708 -30.16 25.65 25.74 271.42
GCRT_J1746-2757 51989.904 266.5417 -27.95 35.21 24.49 76.03
GRS_1734-292 51989.901 264.3533 -29.18 40.05 7.71 21.13
GRS_1747-312 51989.858 267.6900 -31.29 25.77 18.62 4.21
GRS_1758-258 51989.911 270.3025 -25.74 55.18 16.80 3159.53
GS_1826-238 51989.914 277.3623 -23.79 418.74 3.28 3.92
GX_1+4 51989.919 263.0090 -24.75 116.76 41.85 12.34
GX_1+4 51989.924 263.0090 -24.75 106.30 10.10 12.34
GX_1+4 51989.926 263.0090 -24.75 93.89 12.09 12.34
GX_3+1 51989.908 266.9830 -26.56 3676.40 78.11 168.76
GX_3+1 51989.913 266.9830 -26.56 4406.67 56.94 168.76
GX_5-1 51989.912 270.2840 -25.08 10518.77 123.60 42.85
GX_5-1 51989.916 270.2840 -25.08 11119.08 72.63 42.85
H1743-322 51989.855 266.5700 -32.24 11.78 10.18 37.18
IGR_J17191-2821 51989.910 259.7700 -28.35 3.37 6.59 6.27
IGR_J17331-2406 51989.927 263.2833 -24.11 24.27 11.58 29.44
IGR_J17375-3022 51989.879 264.3946 -30.38 5.81 11.38 41.03
IGR_J17497-2821 51989.901 267.4041 -28.36 13.50 38.39 94.33
IGR_J17511-3057 51989.861 267.7875 -30.96 -31.67 34.91 52.12
K1724-356 51989.842 261.9133 -35.73 -2.31 10.77 25.33
KS_1731-260 51989.916 263.5539 -26.09 -3.64 4.74 9.47
KS_1732-273 51989.910 263.9958 -27.44 5.30 6.59 42.28
KS_1741-293 51989.891 266.2042 -29.35 400.83 111.03 274.40
MXB_1730-33 51989.853 263.3498 -33.39 33.85 13.05 333.16
OPH_CLU 51989.931 258.1580 -23.39 481.87 30.80 3.53
RXJ1709.5-263 51989.920 257.3760 -26.66 2.93 0.98 3.59
RXS_J172006.1 51989.891 260.0254 -31.28 22.75 4.49 7.42
RXS_J172525.5 51989.856 261.3563 -32.95 22.18 9.30 15.89
RXS_J173251.1 51989.846 263.2129 -34.79 23.92 7.07 41.94
RXS_J175428.3 51989.910 268.6179 -26.34 0.70 6.16 34.18
RXS_J180326.2 51989.913 270.8417 -25.27 23.77 22.42 4641.13
RXS_J180824.5 51989.922 272.1021 -23.15 12.48 4.83 14.34
R_1832-330 51989.835 278.9317 -32.99 70.73 1.73 3.52
SAXJ1747.0-2853 51989.900 266.7879 -28.88 194.04 101.88 222.90
SAXJ1750.8-2900 51989.892 267.6000 -29.03 74.59 14.87 69.48
SAXJ1753.5-2349 51989.923 268.3917 -23.82 0.30 5.89 17.47
SAXJ1806.5-2215 51989.928 271.6417 -22.25 8.14 4.43 21.28
SAXJ1808.4-3658 51989.829 272.1208 -36.98 -0.59 1.03 3.56
SAXJ1808.4-365P 51989.835 271.1200 -35.50 -3.47 3.83 3.81
SAXJ1810.8-2609 51989.907 272.6850 -26.15 3.54 3.85 9.11
SGR_A 51989.900 266.4000 -29.00 -76.86 130.59 553.44
SLX_1735-269 51989.911 264.5647 -27.00 100.61 7.86 16.85
SLX_1737-282 51989.904 265.2360 -28.31 28.43 16.61 29.93
SLX_1744-300 51989.875 266.8580 -30.04 138.76 20.22 135.52
SLX_1746-331 51989.850 267.4608 -33.20 8.02 7.03 16.54
SW_J1729.9-3437 51989.847 262.5375 -34.61 -8.93 8.14 110.33
SW_J1756.9-2508 51989.915 269.2380 -25.11 -11.00 11.02 558.98
TERZAN_2 51989.881 261.8880 -30.80 234.82 8.46 14.42
WGAJ1715.3-2635 51989.920 258.8370 -26.60 2.92 3.13 3.79
XTE_J1710-281 51989.910 257.5500 -28.12 33.08 1.42 3.75
XTE_J1710-281P 51989.905 258.5500 -28.91 -2.19 13.12 4.43
XTE_J1719-291 51989.903 259.8890 -29.06 4.97 6.12 6.72
XTE_J1719-356 51989.843 259.9700 -35.68 2.34 1.89 17.10
XTE_J1720-318 51989.877 259.9961 -31.75 -3.86 9.09 21.31
XTE_J1723-376 51989.834 260.9000 -37.65 1.41 1.17 16.41
XTE_J1726-283 51989.908 261.6570 -28.30 1.98 11.50 8.61
XTE_J1728-295 51989.902 262.1570 -29.52 6.82 4.74 12.73
XTE_J1734-234 51989.929 263.5280 -23.36 -5.62 6.50 9.03
XTE_J1737-376 51989.832 264.4950 -37.77 -10.06 4.84 8.04
XTE_J1739-285 51989.903 264.9790 -28.48 11.25 16.97 44.79
XTE_J1739-302 51989.881 264.7500 -30.27 20.61 12.87 35.95
XTE_J1743-363 51989.837 265.7415 -36.33 40.37 6.05 8.50
XTE_J1744-230 51989.929 266.0350 -23.12 3.06 4.59 9.53
XTE_J1747-274 51989.907 266.9095 -27.44 58.20 23.38 464.48
XTE_J1748-288 51989.901 267.0210 -28.47 -32.27 78.24 217.95
XTE_J1751-305 51989.862 267.8062 -30.62 26.70 20.70 7.57
XTE_J1752-223 51989.929 268.0440 -22.32 -10.82 7.45 12.91
XTE_J1752-280 51989.902 268.2000 -28.00 23.52 11.03 26.51
XTE_J1755-312 51989.858 268.7820 -31.16 3.64 6.04 16.09
XTE_J1756-342 51989.844 269.0228 -34.21 6.50 4.50 6.15
XTE_J1757-306 51989.860 269.4130 -30.66 19.62 7.14 12.59
XTE_J1759-220 51989.929 269.9404 -22.03 54.48 9.09 20.51
XTE_J1805-295 51989.863 271.4045 -29.52 1.48 7.42 8.35
XTE_J1807-294 51989.863 271.7441 -29.40 0.66 7.29 8.26
XTE_J1812-230 51989.921 273.2000 -23.00 7.25 4.17 11.23
XTE_J1814-338 51989.839 273.4126 -33.77 -1.59 4.02 3.62
XTE_J1817-330 51989.842 274.4250 -33.02 -2.85 3.21 3.58
XTE_J1818-245 51989.908 274.6050 -24.54 2.50 3.49 6.82
XTE_J1819-254 51989.907 274.8300 -25.41 7.99 1.12 5.47
XTE_J1819-254P 51989.904 273.8300 -26.41 20.28 9.96 6.11

Scan Light Curve

Light Curve - Day 2636t - Part 1

Legend
--------------------------
  8 - XTE J1719-356   
 11 - XTE J1723-376   
 18 - 4U 1728-34      
 20 - RXS J173251.1   
 35 - XTE J1743-363   
 55 - A1744-361       
 59 - SLX 1746-331    
 61 - 4U 1746-371     
 72 - XTE J1756-342   
103 - 4U 1820-30      
105 - R 1832-330      
Light Curve - Day 2636t - Part 2

Legend
--------------------------
 10 - RXS J172006.1   
 13 - RXS J172525.5   
 15 - TERZAN 2        
 18 - 4U 1728-34      
 22 - MXB 1730-33     
 28 - IGR J17375-3022 
 31 - XTE J1739-302   
 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 2636t - Part 3

Legend
--------------------------
  0 - RXJ1709.5-263   
  1 - XTE J1710-281   
  5 - WGAJ1715.3-2635 
  6 - IGR J17191-2821 
  7 - XTE J1719-291   
 10 - RXS J172006.1   
 15 - TERZAN 2        
 16 - XTE J1728-295   
 26 - KS 1732-273     
 27 - GRS 1734-292    
 28 - IGR J17375-3022 
 30 - SLX 1735-269    
 31 - XTE J1739-302   
 32 - XTE J1739-285   
 33 - SLX 1737-282    
 36 - 1E1740.7-2942   
 38 - KS 1741-293     
 39 - GCRT J1745-3009 
 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   
 77 - GX 5-1          
 78 - GRS 1758-258    
 81 - RXS J180326.2   
 93 - SAXJ1810.8-2609 
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 2636t - Part 4

Legend
--------------------------
  0 - RXJ1709.5-263   
  3 - OPH CLU         
  5 - WGAJ1715.3-2635 
 19 - GX 1+4          
 21 - IGR J17331-2406 
 37 - XTE J1744-230   
 53 - EXO 1745-248    
 76 - XTE J1759-220   
 85 - SAXJ1806.5-2215 
 87 - RXS J180824.5   
 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 23:18:41 2011 by Craig Markwardt