Observation information
- date-obs: 2018-07-30
- time-obs: 21:14:52.353900000
- date-end: 2018-07-30
- time-end: 23:35:25.351100000
- obs_id: T02_073T01_9000002260
- exposure: 4787.58799104
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002260_15346cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15346cztM0_level2_quad_clean.evt
|
| Size (bytes) | 526,821,120 | 96,808,320 |
| Size | 502.4 MB
| 92.3 MB
|
| Events in quadrant A | 3,219,092 | 617,663 |
| Events in quadrant B | 3,371,518 | 627,465 |
| Events in quadrant C | 3,997,946 | 613,186 |
| Events in quadrant D | 4,890,912 | 585,363 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14420 | 3 |
| B | 0 | 14738 | 2 |
| C | 0 | 16495 | 2 |
| D | 0 | 19501 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7006 | 29 | 0.413931% |
| B | 7006 | 43 | 0.613760% |
| C | 7006 | 18 | 0.256923% |
| D | 7006 | 551 | 7.864687% |
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 | 7612 | 7008 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7612 | 7007 | 12 | 12 | 0.16% | 0.17% |  |
| C | 7612 | 7008 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7612 | 7008 | 466 | 466 | 6.12% | 6.65% |  |
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 | 9 | 143 | 8065 | 42.53 | 833 | 813 | 170.5 |
| A | 0 | 226 | 7128 | 37.04 | 833 | 813 | 170.5 |
| A | 12 | 194 | 6021 | 30.54 | 833 | 813 | 170.5 |
| B | 4 | 173 | 55353 | 336.08 | 833 | 813 | 162.3 |
| B | 3 | 64 | 29435 | 176.37 | 833 | 813 | 162.3 |
| B | 12 | 111 | 19734 | 116.59 | 833 | 813 | 162.3 |
| C | 7 | 247 | 457626 | 2410.34 | 815 | 819 | 189.5 |
| C | 3 | 233 | 360054 | 1895.51 | 815 | 819 | 189.5 |
| C | 13 | 61 | 5601 | 25.23 | 815 | 819 | 189.5 |
| D | 1 | 255 | 1154373 | 5995.86 | 789 | 767 | 192.4 |
| D | 12 | 110 | 578933 | 3005.01 | 789 | 767 | 192.4 |
| D | 7 | 223 | 148163 | 766.09 | 789 | 767 | 192.4 |
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 |  |