Observation information
- date-obs: 2019-06-21
- time-obs: 10:49:49.724000000
- date-end: 2019-06-21
- time-end: 13:12:11.718200000
- obs_id: A05_180T01_9000002992
- exposure: 3123.94290751
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_180T01_9000002992_20165cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20165cztM0_level2_quad_clean.evt
|
| Size (bytes) | 513,279,360 | 80,231,040 |
| Size | 489.5 MB
| 76.5 MB
|
| Events in quadrant A | 3,441,987 | 510,563 |
| Events in quadrant B | 3,553,197 | 505,366 |
| Events in quadrant C | 3,830,786 | 477,719 |
| Events in quadrant D | 4,272,226 | 476,988 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13910 | 2 |
| B | 0 | 14285 | 2 |
| C | 0 | 15349 | 2 |
| D | 0 | 16906 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6585 | 133 | 2.019742% |
| B | 6585 | 146 | 2.217160% |
| C | 6585 | 167 | 2.536067% |
| D | 6585 | 238 | 3.614275% |
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 | 7635 | 6586 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7635 | 6586 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7635 | 6586 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7635 | 6586 | 123 | 123 | 1.61% | 1.87% |  |
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 | 226 | 7736 | 38.45 | 894 | 881 | 178.3 |
| A | 3 | 137 | 7079 | 34.77 | 894 | 881 | 178.3 |
| A | 12 | 194 | 6315 | 30.48 | 894 | 881 | 178.3 |
| B | 0 | 198 | 60545 | 361.72 | 878 | 858 | 165.0 |
| B | 4 | 80 | 20208 | 117.27 | 878 | 858 | 165.0 |
| B | 12 | 111 | 19689 | 114.12 | 878 | 858 | 165.0 |
| C | 3 | 233 | 417011 | 2146.93 | 835 | 844 | 193.8 |
| C | 14 | 238 | 133068 | 682.12 | 835 | 844 | 193.8 |
| C | 5 | 4 | 21159 | 104.8 | 835 | 844 | 193.8 |
| D | 1 | 52 | 528776 | 2536.28 | 857 | 833 | 208.2 |
| D | 12 | 238 | 305782 | 1465.0 | 857 | 833 | 208.2 |
| D | 6 | 143 | 52677 | 249.06 | 857 | 833 | 208.2 |
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 |  |