RXTE Galactic Center Observation

Observation Date:2001-03-31
Mission Day:2646t
Modified Julian Day: 51999.836
Mission times: 228686657.00- 228695825.00
Scan type:regular

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 2001-03-31 (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 1728-34 (262.99,-33.83) 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) 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) NGC 6440 (267.22,-20.36) OPH CLU (258.16,-23.39) R 1832-330 (278.93,-32.99) 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 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 J1810-189 (272.59,-19.07) XTE J1810-197 (272.46,-19.73) 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 51999.868 265.9604 -29.75 223.95 44.90 303.62
1E1743.1-2843 51999.871 266.5792 -28.72 75.90 109.68 282.85
2E1746.7-3225 51999.870 267.5144 -32.43 16.66 12.44 19.03
2S1742-294 51999.870 266.5230 -29.52 280.92 51.47 432.64
2S1803-245 51999.926 271.7090 -24.59 14.59 10.84 14.11
4U_1728-34 51999.853 262.9920 -33.83 939.57 27.04 40.06
4U_1820-30 51999.930 275.9280 -30.37 5803.67 121.83 3.71
4U_1820-30 51999.933 275.9280 -30.37 5858.30 57.33 3.71
4U_1820-30 51999.937 275.9280 -30.37 6182.85 135.89 3.71
A1744-361 51999.865 267.0800 -36.12 0.72 3.58 16.45
AX_J1749.1-2639 51999.899 267.3000 -26.65 -7.70 64.34 2960.51
EXO_1722-363 51999.844 261.4810 -36.41 18.47 14.30 24.81
EXO_1742-326 51999.867 266.3690 -32.69 3.36 11.74 27.91
EXO_1745-248 51999.907 267.0208 -24.78 6.21 4.90 17.08
GCRT_J1745-3009 51999.869 266.2708 -30.16 17.83 24.87 380.87
GCRT_J1746-2757 51999.874 266.5417 -27.95 66.66 21.62 45.19
GRS_1734-292 51999.862 264.3533 -29.18 52.63 9.34 16.65
GRS_1747-312 51999.882 267.6900 -31.29 -6.84 18.62 25.88
GRS_1758-258 51999.919 270.3025 -25.74 -27.00 23.79 4827.15
GS_1826-238 51999.942 277.3623 -23.79 460.93 4.31 4.05
GX_1+4 51999.858 263.0090 -24.75 30.91 13.42 7.79
GX_1+4 51999.864 263.0090 -24.75 22.92 19.37 7.79
GX_3+1 51999.873 266.9830 -26.56 4108.99 74.94 16.63
GX_3+1 51999.907 266.9830 -26.56 4160.15 120.58 16.63
GX_5-1 51999.916 270.2840 -25.08 15724.07 242.56 10.05
GX_5-1 51999.920 270.2840 -25.08 16952.08 117.43 10.05
GX_5-1 51999.923 270.2840 -25.08 17054.67 192.30 10.05
H1743-322 51999.868 266.5700 -32.24 22.79 8.81 21.15
IGR_J17191-2821 51999.845 259.7700 -28.35 -5.04 4.89 7.03
IGR_J17331-2406 51999.864 263.2833 -24.11 6.55 5.13 11.48
IGR_J17375-3022 51999.861 264.3946 -30.38 11.63 12.40 26.44
IGR_J17497-2821 51999.889 267.4041 -28.36 4.40 31.81 159.57
IGR_J17511-3057 51999.884 267.7875 -30.96 11.49 27.20 15.49
IGR_J17586-2129 51999.921 269.6440 -21.39 23.04 8.00 51.76
K1724-356 51999.847 261.9133 -35.73 3.68 6.31 30.08
KS_1731-260 51999.863 263.5539 -26.09 2.25 7.83 9.60
KS_1732-273 51999.863 263.9958 -27.44 6.97 10.74 42.01
KS_1741-293 51999.869 266.2042 -29.35 179.99 103.37 441.50
MXB_1730-33 51999.854 263.3498 -33.39 9.82 14.79 429.03
NGC_6440 51999.915 267.2195 -20.36 -9.96 64.67 7.10
OPH_CLU 51999.844 258.1580 -23.39 285.11 4.40 3.65
RXS_J172006.1 51999.842 260.0254 -31.28 49.34 9.09 7.02
RXS_J172525.5 51999.847 261.3563 -32.95 20.06 5.64 16.01
RXS_J173251.1 51999.853 263.2129 -34.79 8.24 9.06 53.11
RXS_J175428.3 51999.911 268.6179 -26.34 -4.49 16.00 34.22
RXS_J180326.2 51999.921 270.8417 -25.27 -0.71 34.10 7081.06
RXS_J180824.5 51999.928 272.1021 -23.15 8.71 3.50 14.20
R_1832-330 51999.939 278.9317 -32.99 80.60 7.40 3.65
SAXJ1747.0-2853 51999.876 266.7879 -28.88 136.83 68.89 305.70
SAXJ1750.8-2900 51999.889 267.6000 -29.03 282.11 19.18 63.60
SAXJ1753.5-2349 51999.914 268.3917 -23.82 -0.59 6.53 17.59
SAXJ1806.5-2215 51999.928 271.6417 -22.25 2.21 1.36 21.30
SAXJ1808.4-3658 51999.911 272.1208 -36.98 1.69 1.57 3.69
SAXJ1808.4-365P 51999.911 271.1200 -35.50 2.96 6.14 3.94
SAXJ1810.8-2609 51999.928 272.6850 -26.15 6.96 4.92 9.07
SGR_1806-20 51999.935 272.1642 -20.41 6.14 11.15 28.41
SGR_A 51999.870 266.4000 -29.00 22.42 140.64 439.36
SLX_1735-269 51999.864 264.5647 -27.00 99.20 8.89 17.43
SLX_1737-282 51999.866 265.2360 -28.31 177.87 26.04 -11.15
SLX_1744-300 51999.870 266.8580 -30.04 340.66 28.13 172.37
SLX_1746-331 51999.869 267.4608 -33.20 12.09 6.74 14.83
SW_J1729.9-3437 51999.849 262.5375 -34.61 -0.70 11.04 127.26
SW_J1756.9-2508 51999.915 269.2380 -25.11 -2.29 10.20 838.45
TERZAN_2 51999.851 261.8880 -30.80 217.26 11.14 14.55
WGAJ1715.3-2635 51999.844 258.8370 -26.60 -0.16 4.32 3.92
XTE_J1710-281 51999.837 257.5500 -28.12 64.61 8.74 3.88
XTE_J1710-281P 51999.838 258.5500 -28.91 4.54 4.76 4.58
XTE_J1719-291 51999.845 259.8890 -29.06 7.76 5.27 4.95
XTE_J1719-356 51999.840 259.9700 -35.68 9.71 4.94 17.23
XTE_J1720-318 51999.842 259.9961 -31.75 -4.90 8.03 34.64
XTE_J1723-376 51999.839 260.9000 -37.65 4.28 3.81 16.54
XTE_J1726-283 51999.852 261.6570 -28.30 3.79 4.88 8.74
XTE_J1728-295 51999.853 262.1570 -29.52 5.43 5.96 12.86
XTE_J1734-234 51999.864 263.5280 -23.36 -1.86 1.60 6.33
XTE_J1737-376 51999.854 264.4950 -37.77 -4.06 1.69 8.17
XTE_J1739-285 51999.866 264.9790 -28.48 -46.15 24.20 153.37
XTE_J1739-302 51999.862 264.7500 -30.27 -1.47 12.34 40.00
XTE_J1743-363 51999.861 265.7415 -36.33 14.43 1.85 8.62
XTE_J1744-230 51999.888 266.0350 -23.12 13.71 10.98 9.65
XTE_J1747-274 51999.884 266.9095 -27.44 -39.53 24.73 432.87
XTE_J1748-288 51999.882 267.0210 -28.47 12.14 65.54 226.87
XTE_J1751-305 51999.886 267.8062 -30.62 2.24 18.58 31.66
XTE_J1752-223 51999.914 268.0440 -22.32 -0.79 4.72 13.04
XTE_J1752-280 51999.907 268.2000 -28.00 29.15 9.76 25.51
XTE_J1755-312 51999.897 268.7820 -31.16 6.30 6.54 19.88
XTE_J1756-342 51999.889 269.0228 -34.21 4.00 3.83 6.27
XTE_J1757-306 51999.910 269.4130 -30.66 29.55 6.88 13.26
XTE_J1759-220 51999.921 269.9404 -22.03 56.39 5.12 26.11
XTE_J1805-295 51999.918 271.4045 -29.52 6.03 11.84 9.31
XTE_J1807-294 51999.920 271.7441 -29.40 1.89 11.20 11.46
XTE_J1810-189 51999.935 272.5863 -19.07 -2.59 53.57 38.49
XTE_J1810-197 51999.935 272.4630 -19.73 -4.68 11.49 37.91
XTE_J1812-230 51999.935 273.2000 -23.00 1.42 5.03 11.30
XTE_J1814-338 51999.919 273.4126 -33.77 4.71 6.48 3.76
XTE_J1817-330 51999.925 274.4250 -33.02 2.03 3.69 3.72
XTE_J1818-245 51999.936 274.6050 -24.54 3.30 5.31 7.13
XTE_J1819-254 51999.935 274.8300 -25.41 10.30 4.81 5.66
XTE_J1819-254P 51999.931 273.8300 -26.41 0.06 6.26 6.26

Scan Light Curve

Light Curve - Day 2646t - Part 1

Legend
--------------------------
  1 - XTE J1710-281   
  2 - XTE J1710-281P  
  3 - OPH CLU         
  7 - XTE J1719-291   
  8 - XTE J1719-356   
 10 - RXS J172006.1   
 11 - XTE J1723-376   
 12 - EXO 1722-363    
 13 - RXS J172525.5   
 14 - XTE J1726-283   
 15 - TERZAN 2        
 16 - XTE J1728-295   
 18 - 4U 1728-34      
 19 - GX 1+4          
 20 - RXS J173251.1   
 22 - MXB 1730-33     
147 - K1724-356       
Light Curve - Day 2646t - Part 2

Legend
--------------------------
 19 - GX 1+4          
 21 - IGR J17331-2406 
 25 - KS 1731-260     
 26 - KS 1732-273     
 27 - GRS 1734-292    
 28 - IGR J17375-3022 
 30 - SLX 1735-269    
 33 - SLX 1737-282    
 35 - XTE J1743-363   
 36 - 1E1740.7-2942   
 37 - XTE J1744-230   
 38 - KS 1741-293     
 39 - GCRT J1745-3009 
 40 - EXO 1742-326    
 41 - SGR A           
 42 - 2S1742-294      
 43 - GCRT J1746-2757 
 44 - 1E1743.1-2843   
 45 - H1743-322       
 46 - SAXJ1747.0-2853 
 48 - SLX 1744-300    
 51 - GX 3+1          
 54 - XTE J1748-288   
 58 - IGR J17497-2821 
 59 - SLX 1746-331    
 60 - 2E1746.7-3225   
 62 - SAXJ1750.8-2900 
 65 - XTE J1751-305   
 66 - IGR J17511-3057 
 71 - XTE J1755-312   
 72 - XTE J1756-342   
191 - GX 1+4          
Light Curve - Day 2646t - Part 3

Legend
--------------------------
 37 - XTE J1744-230   
 46 - SAXJ1747.0-2853 
 53 - EXO 1745-248    
 54 - XTE J1748-288   
 58 - IGR J17497-2821 
 62 - SAXJ1750.8-2900 
 66 - IGR J17511-3057 
 68 - XTE J1752-280   
 71 - XTE J1755-312   
 72 - XTE J1756-342   
 74 - XTE J1757-306   
 75 - IGR J17586-2129 
 76 - XTE J1759-220   
 77 - GX 5-1          
 83 - XTE J1805-295   
 84 - XTE J1807-294   
 86 - 2S1803-245      
 88 - SAXJ1808.4-3658 
 89 - SAXJ1808.4-365P 
 96 - XTE J1814-338   
 98 - XTE J1817-330   
192 - GX 3+1          
193 - GX 5-1          
194 - GX 5-1          
Light Curve - Day 2646t - Part 4

Legend
--------------------------
 85 - SAXJ1806.5-2215 
 86 - 2S1803-245      
 87 - RXS J180824.5   
 90 - SGR 1806-20     
 93 - SAXJ1810.8-2609 
 95 - XTE J1812-230   
 98 - XTE J1817-330   
100 - XTE J1818-245   
101 - XTE J1819-254   
103 - 4U 1820-30      
104 - GS 1826-238     
105 - R 1832-330      
150 - G11.2-0.3       
195 - 4U 1820-30      
196 - 4U 1820-30      

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Generated automatically on Fri Mar 18 23:19:13 2011 by Craig Markwardt