Observation information
- date-obs: 2024-05-17
- time-obs: 08:10:19.461200000
- date-end: 2024-05-17
- time-end: 10:02:21.457600000
- obs_id: A13_037T01_9000006256
- exposure: 939.598660707
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_037T01_9000006256_46698cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46698cztM0_level2_quad_clean.evt
|
| Size (bytes) | 86,636,160 | 17,314,560 |
| Size | 82.6 MB
| 16.5 MB
|
| Events in quadrant A | 1,016,354 | 96,168 |
| Events in quadrant B | 689,669 | 120,939 |
| Events in quadrant C | 593,994 | 116,358 |
| Events in quadrant D | 805,133 | 95,202 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16563 | 12780 |
| B | 0 | 11081 | 8136 |
| C | 0 | 10275 | 7462 |
| D | 0 | 13335 | 10058 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 99 | 67 |
| B | 0 | 97 | 69 |
| C | 0 | 97 | 73 |
| D | 0 | 102 | 74 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 1 | 140067044923432 | 140063178489902 |
| B | 1 | -1 | -1 |
| C | 1 | -1 | -1 |
| D | 1 | -1 | -1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1105 | 5 | 0.452489% |
| B | 1330 | 12 | 0.902256% |
| C | 1373 | 1 | 0.072833% |
| D | 1247 | 39 | 3.127506% |
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 | 5353 | 1391 | 0 | 0 | 0.00% | 0.00% |  |
| B | 5739 | 1656 | 4 | 4 | 0.07% | 0.24% |  |
| C | 5771 | 1694 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5751 | 1566 | 23 | 23 | 0.40% | 1.47% |  |
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 | 10 | 83 | 529788 | 20280.0 | 115 | 112 | 26.1 |
| A | 15 | 254 | 28482 | 1086.22 | 115 | 112 | 26.1 |
| A | 15 | 235 | 6228 | 234.17 | 115 | 112 | 26.1 |
| B | 0 | 198 | 37904 | 1262.67 | 138 | 134 | 29.9 |
| B | 15 | 36 | 30950 | 1030.2 | 138 | 134 | 29.9 |
| B | 4 | 171 | 24366 | 810.09 | 138 | 134 | 29.9 |
| C | 8 | 131 | 44802 | 1286.24 | 138 | 138 | 34.7 |
| C | 12 | 2 | 4511 | 125.93 | 138 | 138 | 34.7 |
| C | 8 | 147 | 1893 | 50.54 | 138 | 138 | 34.7 |
| D | 13 | 249 | 76279 | 2210.02 | 126 | 121 | 34.5 |
| D | 13 | 171 | 70348 | 2037.91 | 126 | 121 | 34.5 |
| D | 12 | 128 | 37070 | 1072.22 | 126 | 121 | 34.5 |
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 |  |