Observation information
- date-obs: 2024-12-15
- time-obs: 23:12:46.382700000
- date-end: 2024-12-16
- time-end: 01:12:25.359400000
- obs_id: A13_037T01_9000006440
- exposure: 17.3158415556
- 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_9000006440_49853cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49853cztM0_level2_quad_clean.evt
|
| Size (bytes) | 910,555,200 | 52,885,440 |
| Size | 868.4 MB
| 50.4 MB
|
| Events in quadrant A | 6,565,681 | 530,697 |
| Events in quadrant B | 3,417,082 | 642,969 |
| Events in quadrant C | 11,069,939 | 5,167 |
| Events in quadrant D | 12,184,304 | 2,058 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23721 | 1 |
| B | 0 | 14275 | 1 |
| C | 0 | 37058 | 1 |
| D | 0 | 40346 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6024 | 723 | 12.001992% |
| B | 6024 | 135 | 2.241036% |
| C | 6025 | 5992 | 99.452282% |
| D | 6025 | 6013 | 99.800830% |
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 | 7179 | 6025 | 565 | 565 | 7.87% | 9.38% |  |
| B | 7179 | 6025 | 55 | 55 | 0.77% | 0.91% |  |
| C | 7179 | 6024 | 2040 | 2040 | 28.42% | 33.86% |  |
| D | 7179 | 6024 | 3035 | 3035 | 42.28% | 50.38% |  |
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 | 3 | 84 | 1096311 | 6910.52 | 635 | 620 | 158.6 |
| A | 8 | 38 | 554272 | 3491.88 | 635 | 620 | 158.6 |
| A | 15 | 160 | 346051 | 2178.63 | 635 | 620 | 158.6 |
| B | 4 | 206 | 205664 | 1467.26 | 661 | 641 | 139.7 |
| B | 10 | 28 | 201477 | 1437.3 | 661 | 641 | 139.7 |
| B | 0 | 229 | 173740 | 1238.8 | 661 | 641 | 139.7 |
| C | 15 | 189 | 3992477 | 107836.18 | 112 | 110 | 37.0 |
| C | 15 | 197 | 1800812 | 48638.02 | 112 | 110 | 37.0 |
| C | 15 | 164 | 999848 | 27003.51 | 112 | 110 | 37.0 |
| D | 7 | 61 | 4581917 | 104307.45 | 137 | 131 | 43.9 |
| D | 8 | 129 | 2022844 | 46048.43 | 137 | 131 | 43.9 |
| D | 11 | 176 | 1730147 | 39384.98 | 137 | 131 | 43.9 |
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 |  |