Observation information
- date-obs: 2019-09-30
- time-obs: 23:29:46.688200000
- date-end: 2019-10-01
- time-end: 00:55:00.688300000
- obs_id: A06_002T02_9000003206
- exposure: 1978.54625748
- sourceid: Cyg X-2
- observer: sudip
- ra_pnt: 326.1715
- dec_pnt: 38.32141
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A06_002T02_9000003206_21668cztM0_level2.evt
| modeM0/AS1A06_002T02_9000003206_21668cztM0_level2_quad_clean.evt
|
| Size (bytes) | 348,791,040 | 49,138,560 |
| Size | 332.6 MB
| 46.9 MB
|
| Events in quadrant A | 2,350,933 | 310,053 |
| Events in quadrant B | 2,056,642 | 326,424 |
| Events in quadrant C | 1,976,317 | 305,447 |
| Events in quadrant D | 3,904,427 | 260,857 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9635 | 1 |
| B | 0 | 8597 | 1 |
| C | 0 | 8400 | 1 |
| D | 0 | 14294 | 1 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 82 | 0 |
| B | 0 | 82 | 0 |
| C | 0 | 82 | 0 |
| D | 0 | 82 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4032 | 8 | 0.198413% |
| B | 4032 | 10 | 0.248016% |
| C | 4032 | 12 | 0.297619% |
| D | 4032 | 460 | 11.408730% |
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 | 4032 | 4032 | 1 | 1 | 0.02% | 0.02% |  |
| B | 4032 | 4032 | 3 | 3 | 0.07% | 0.07% |  |
| C | 4032 | 4032 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4032 | 4032 | 452 | 452 | 11.21% | 11.21% |  |
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 | 15 | 236 | 421956 | 4208.16 | 500 | 491 | 100.2 |
| A | 13 | 254 | 6246 | 57.46 | 500 | 491 | 100.2 |
| A | 0 | 226 | 4263 | 37.66 | 500 | 491 | 100.2 |
| B | 3 | 64 | 33629 | 345.92 | 508 | 496 | 95.8 |
| B | 0 | 230 | 21316 | 217.37 | 508 | 496 | 95.8 |
| B | 12 | 111 | 10970 | 109.35 | 508 | 496 | 95.8 |
| C | 14 | 238 | 78181 | 682.93 | 485 | 490 | 113.8 |
| C | 10 | 22 | 4803 | 37.91 | 485 | 490 | 113.8 |
| C | 13 | 61 | 3468 | 26.18 | 485 | 490 | 113.8 |
| D | 7 | 238 | 1663176 | 14831.83 | 463 | 450 | 112.1 |
| D | 1 | 52 | 346896 | 3090.36 | 463 | 450 | 112.1 |
| D | 13 | 172 | 62003 | 549.06 | 463 | 450 | 112.1 |
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 |  |