Observation information
- date-obs: 2019-06-13
- time-obs: 04:31:29.884500000
- date-end: 2019-06-13
- time-end: 06:40:49.881200000
- obs_id: A05_180T01_9000002986
- exposure: 4253.80445531
- 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_9000002986_20042cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002986_20042cztM0_level2_quad_clean.evt
|
| Size (bytes) | 455,644,800 | 101,943,360 |
| Size | 434.5 MB
| 97.2 MB
|
| Events in quadrant A | 3,373,212 | 669,540 |
| Events in quadrant B | 3,345,781 | 671,670 |
| Events in quadrant C | 3,282,492 | 640,978 |
| Events in quadrant D | 3,341,975 | 637,708 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14071 | 2 |
| B | 0 | 13903 | 2 |
| C | 0 | 13817 | 2 |
| D | 0 | 14297 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6707 | 71 | 1.058595% |
| B | 6707 | 44 | 0.656031% |
| C | 6707 | 54 | 0.805129% |
| D | 6707 | 30 | 0.447294% |
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 | 7697 | 6708 | 18 | 18 | 0.23% | 0.27% |  |
| B | 7697 | 6708 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7697 | 6708 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7697 | 6708 | 10 | 10 | 0.13% | 0.15% |  |
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 | 14 | 238 | 119746 | 701.56 | 840 | 826 | 169.5 |
| A | 14 | 237 | 8864 | 47.42 | 840 | 826 | 169.5 |
| A | 13 | 254 | 7248 | 37.88 | 840 | 826 | 169.5 |
| B | 0 | 198 | 51682 | 317.62 | 834 | 815 | 160.1 |
| B | 12 | 111 | 19234 | 115.01 | 834 | 815 | 160.1 |
| B | 11 | 111 | 16809 | 99.87 | 834 | 815 | 160.1 |
| C | 14 | 238 | 127015 | 674.34 | 799 | 810 | 187.2 |
| C | 4 | 254 | 18773 | 95.98 | 799 | 810 | 187.2 |
| C | 3 | 233 | 15045 | 76.06 | 799 | 810 | 187.2 |
| D | 1 | 52 | 230043 | 1155.12 | 814 | 793 | 198.5 |
| D | 2 | 234 | 30637 | 150.38 | 814 | 793 | 198.5 |
| D | 8 | 195 | 22049 | 107.1 | 814 | 793 | 198.5 |
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 |  |