Observation information
- date-obs: 2015-10-07
- time-obs: 15:52:03.343800000
- date-end: 2015-10-07
- time-end: 20:07:31.316300000
- obs_id: P01_140T01_9000000004
- exposure: 1113.93167678
- 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_9000000004_00144cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000004_00144cztM0_level2_quad_clean.evt
|
| Size (bytes) | 237,864,960 | 20,689,920 |
| Size | 226.8 MB
| 19.7 MB
|
| Events in quadrant A | 1,685,358 | 131,480 |
| Events in quadrant B | 1,713,330 | 136,838 |
| Events in quadrant C | 1,606,650 | 133,949 |
| Events in quadrant D | 2,101,848 | 118,434 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 65 | 31 |
| B | 0 | 62 | 30 |
| C | 0 | 62 | 36 |
| D | 0 | 64 | 34 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 9 |
| B | 0 | 16 | 7 |
| C | 0 | 17 | 8 |
| D | 0 | 18 | 9 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12041 | 6015 |
| B | 0 | 12805 | 6718 |
| C | 0 | 11794 | 6012 |
| D | 0 | 14817 | 7561 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1412 | 1 | 0.070822% |
| B | 1415 | 0 | 0.000000% |
| C | 1431 | 0 | 0.000000% |
| D | 1398 | 130 | 9.298999% |
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 | 5829 | 1452 | 61 | 61 | 1.05% | 4.20% |  |
| B | 5845 | 1451 | 29 | 29 | 0.50% | 2.00% |  |
| C | 5855 | 1484 | 16 | 16 | 0.27% | 1.08% |  |
| D | 5785 | 1431 | 216 | 216 | 3.73% | 15.09% |  |
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 | 13 | 9 | 3897 | 47.16 | 432 | 422 | 73.7 |
| A | 13 | 160 | 2176 | 23.8 | 432 | 422 | 73.7 |
| A | 13 | 239 | 1926 | 20.41 | 432 | 422 | 73.7 |
| B | 0 | 212 | 22306 | 226.62 | 432 | 433 | 96.5 |
| B | 8 | 236 | 7872 | 77.07 | 432 | 433 | 96.5 |
| B | 14 | 50 | 7777 | 76.09 | 432 | 433 | 96.5 |
| C | 10 | 69 | 46320 | 412.64 | 395 | 409 | 111.3 |
| C | 3 | 32 | 3599 | 28.67 | 395 | 409 | 111.3 |
| C | 2 | 192 | 1731 | 11.88 | 395 | 409 | 111.3 |
| D | 14 | 53 | 338568 | 3035.85 | 411 | 397 | 111.4 |
| D | 11 | 164 | 38956 | 346.15 | 411 | 397 | 111.4 |
| D | 13 | 218 | 23097 | 203.78 | 411 | 397 | 111.4 |
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 |  |