Observation information
- date-obs: 2016-03-04
- time-obs: 11:22:15.935200000
- date-end: 2016-03-06
- time-end: 14:27:54.930800000
- obs_id: T01_030T01_9000000358
- exposure: 85355.3837937
- sourceid: GRS 1915+105
- observer: parag
- ra_pnt: 288.7983
- dec_pnt: 10.94556
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T01_030T01_9000000358cztM0_level2.evt
| modeM0/AS1T01_030T01_9000000358cztM0_level2_quad_clean.evt
|
Size (bytes) | 10,267,007,040 | 1,790,389,440 |
Size | 9.6 GB
| 1.7 GB
|
Events in quadrant A | 77,321,590 | 11,031,832 |
Events in quadrant B | 74,486,339 | 11,324,990 |
Events in quadrant C | 73,388,680 | 10,996,159 |
Events in quadrant D | 75,553,655 | 10,531,554 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3068 | 0 |
B | 0 | 3068 | 0 |
C | 0 | 3068 | 0 |
D | 0 | 3068 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 330224 | 0 |
B | 0 | 320798 | 0 |
C | 0 | 320345 | 0 |
D | 0 | 333669 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 220 | 0 |
B | 0 | 220 | 0 |
C | 0 | 220 | 0 |
D | 0 | 220 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 150991 | 2791 | 1.848455% |
B | 150993 | 2537 | 1.680210% |
C | 150993 | 1926 | 1.275556% |
D | 150992 | 2735 | 1.811354% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 183940 | 151026 | 554 | 554 | 0.30% | 0.37% |  |
B | 183940 | 151027 | 306 | 306 | 0.17% | 0.20% |  |
C | 183940 | 151027 | 265 | 265 | 0.14% | 0.18% |  |
D | 183940 | 151026 | 1114 | 1114 | 0.61% | 0.74% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 8 | 14 | 4468086 | 1223.06 | 18086 | 17726 | 3638.7 |
A | 14 | 235 | 966924 | 260.86 | 18086 | 17726 | 3638.7 |
A | 3 | 1 | 568747 | 151.43 | 18086 | 17726 | 3638.7 |
B | 6 | 36 | 1018076 | 289.11 | 18353 | 17961 | 3459.3 |
B | 4 | 48 | 926197 | 262.55 | 18353 | 17961 | 3459.3 |
B | 8 | 3 | 406970 | 112.45 | 18353 | 17961 | 3459.3 |
C | 5 | 234 | 1678279 | 410.05 | 17543 | 17683 | 4049.7 |
C | 7 | 220 | 1034789 | 251.16 | 17543 | 17683 | 4049.7 |
C | 14 | 223 | 517520 | 123.43 | 17543 | 17683 | 4049.7 |
D | 2 | 216 | 3014097 | 716.33 | 17429 | 17019 | 4184.0 |
D | 1 | 20 | 2412493 | 572.54 | 17429 | 17019 | 4184.0 |
D | 9 | 66 | 1284525 | 302.94 | 17429 | 17019 | 4184.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |