Observation information
- date-obs: 2015-10-11
- time-obs: 17:59:29.760300000
- date-end: 2015-10-11
- time-end: 19:56:35.750100000
- obs_id: P01_140T01_9000000018
- exposure: 3209.19400281
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_140T01_9000000018_00203cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000018_00203cztM0_level2_quad_clean.evt
|
| Size (bytes) | 698,927,040 | 61,781,760 |
| Size | 666.5 MB
| 58.9 MB
|
| Events in quadrant A | 5,215,279 | 388,509 |
| Events in quadrant B | 5,184,566 | 399,038 |
| Events in quadrant C | 4,973,543 | 390,953 |
| Events in quadrant D | 5,486,386 | 368,394 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 108 | 12 |
| B | 0 | 106 | 10 |
| C | 0 | 105 | 7 |
| D | 0 | 106 | 10 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 15 | 1 |
| D | 0 | 16 | 1 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21624 | 2858 |
| B | 0 | 21418 | 2745 |
| C | 0 | 20587 | 2535 |
| D | 0 | 22173 | 2596 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4600 | 3 | 0.065217% |
| B | 4599 | 3 | 0.065232% |
| C | 4597 | 1 | 0.021753% |
| D | 4596 | 69 | 1.501305% |
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 | 7028 | 4638 | 117 | 117 | 1.66% | 2.52% |  |
| B | 7028 | 4638 | 68 | 68 | 0.97% | 1.47% |  |
| C | 7028 | 4634 | 33 | 33 | 0.47% | 0.71% |  |
| D | 7028 | 4637 | 251 | 251 | 3.57% | 5.41% |  |
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 | 0 | 6 | 55434 | 189.08 | 1310 | 1298 | 286.3 |
| A | 0 | 253 | 31184 | 104.38 | 1310 | 1298 | 286.3 |
| A | 12 | 150 | 24932 | 82.55 | 1310 | 1298 | 286.3 |
| B | 8 | 5 | 31640 | 97.99 | 1336 | 1345 | 309.2 |
| B | 5 | 2 | 12081 | 34.73 | 1336 | 1345 | 309.2 |
| B | 5 | 46 | 11399 | 32.52 | 1336 | 1345 | 309.2 |
| C | 0 | 186 | 53216 | 150.4 | 1244 | 1295 | 345.2 |
| C | 1 | 1 | 32971 | 91.76 | 1244 | 1295 | 345.2 |
| C | 10 | 21 | 3646 | 6.81 | 1244 | 1295 | 345.2 |
| D | 13 | 117 | 262898 | 727.9 | 1194 | 1235 | 359.5 |
| D | 1 | 4 | 145704 | 401.89 | 1194 | 1235 | 359.5 |
| D | 1 | 5 | 86579 | 237.41 | 1194 | 1235 | 359.5 |
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 |  |