Observation information
- date-obs: 2015-11-14
- time-obs: 13-18-24.000008194
- date-end: 2015-11-14
- time-end: 16-05-15.000008129
- obs_id: P01_142T01_9000000102
- exposure: 5483.00034721
- sourceid: GRS1915+105
- observer: santoshv
- ra_pnt: 288.8058
- dec_pnt: 10.96698
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_142T01_9000000102cztM0_level2_bc.evt
| modeM0/AS1P01_142T01_9000000102cztM0_level2_quad_clean.evt
|
Size (bytes) | 376,963,200 | 89,349,120 |
Size | 359.5 MB
| 85.2 MB
|
Events in quadrant A | 2,017,648 | 538,129 |
Events in quadrant B | 2,626,093 | 539,334 |
Events in quadrant C | 3,230,276 | 523,026 |
Events in quadrant D | 2,957,513 | 515,130 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36681 | 0 |
B | 0 | 39426 | 0 |
C | 0 | 39419 | 0 |
D | 0 | 36859 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 174 | 0 |
B | 0 | 174 | 0 |
C | 0 | 174 | 0 |
D | 0 | 174 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8497 | 64 | 0.753207% |
B | 8497 | 207 | 2.436154% |
C | 8497 | 14 | 0.164764% |
D | 8497 | 58 | 0.682594% |
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 | 10012 | 8497 | 10 | 10 | 0.10% | 0.12% |  |
B | 10012 | 8497 | 161 | 161 | 1.61% | 1.89% |  |
C | 10012 | 8497 | 0 | 0 | 0.00% | 0.00% |  |
D | 10012 | 8497 | 1 | 1 | 0.01% | 0.01% |  |
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 | 10 | 216 | 242982 | 3156.23 | 360 | 351 | 76.9 |
A | 15 | 171 | 170876 | 2218.25 | 360 | 351 | 76.9 |
A | 12 | 133 | 168253 | 2184.13 | 360 | 351 | 76.9 |
B | 5 | 191 | 828635 | 12076.75 | 367 | 355 | 68.6 |
B | 5 | 247 | 249069 | 3626.38 | 367 | 355 | 68.6 |
B | 0 | 220 | 47216 | 683.26 | 367 | 355 | 68.6 |
C | 3 | 31 | 423867 | 5562.78 | 352 | 344 | 76.1 |
C | 3 | 15 | 389418 | 5110.3 | 352 | 344 | 76.1 |
C | 3 | 175 | 321054 | 4212.38 | 352 | 344 | 76.1 |
D | 0 | 25 | 1238357 | 15803.6 | 352 | 340 | 78.3 |
D | 12 | 188 | 161582 | 2058.29 | 352 | 340 | 78.3 |
D | 1 | 4 | 95285 | 1212.0 | 352 | 340 | 78.3 |
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 |  |