Observation information
- date-obs: 2025-06-08
- time-obs: 17:06:05.190600000
- date-end: 2025-06-08
- time-end: 20:24:32.156400000
- obs_id: A13_037T01_9000006476
- exposure: 5773.06222367
- 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_9000006476_52448cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52448cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,132,148,160 | 136,218,240 |
| Size | 1.1 GB
| 129.9 MB
|
| Events in quadrant A | 5,850,299 | 999,364 |
| Events in quadrant B | 6,578,222 | 1,016,793 |
| Events in quadrant C | 9,288,259 | 879,485 |
| Events in quadrant D | 19,371,231 | 492,843 |
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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25121 | 2 |
| B | 0 | 27154 | 2 |
| C | 0 | 34984 | 2 |
| D | 0 | 64880 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 218 | 0 |
| B | 0 | 218 | 0 |
| C | 0 | 218 | 0 |
| D | 0 | 218 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10612 | 273 | 2.572559% |
| B | 10612 | 574 | 5.408971% |
| C | 10613 | 933 | 8.791105% |
| D | 10613 | 5255 | 49.514746% |
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 | 11907 | 10613 | 202 | 202 | 1.70% | 1.90% |  |
| B | 11907 | 10612 | 409 | 409 | 3.43% | 3.85% |  |
| C | 11908 | 10613 | 825 | 825 | 6.93% | 7.77% |  |
| D | 11907 | 10612 | 5259 | 5259 | 44.17% | 49.56% |  |
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 | 45 | 686244 | 2501.21 | 1104 | 1078 | 273.9 |
| A | 4 | 61 | 548633 | 1998.86 | 1104 | 1078 | 273.9 |
| A | 4 | 3 | 58379 | 209.18 | 1104 | 1078 | 273.9 |
| B | 8 | 234 | 930096 | 3989.45 | 1076 | 1036 | 232.9 |
| B | 4 | 171 | 299599 | 1282.05 | 1076 | 1036 | 232.9 |
| B | 4 | 170 | 251888 | 1077.18 | 1076 | 1036 | 232.9 |
| C | 15 | 231 | 1568047 | 5498.64 | 1038 | 1027 | 285.0 |
| C | 15 | 248 | 1520530 | 5331.91 | 1038 | 1027 | 285.0 |
| C | 13 | 3 | 770670 | 2700.66 | 1038 | 1027 | 285.0 |
| D | 6 | 42 | 11435788 | 48760.93 | 823 | 788 | 234.5 |
| D | 12 | 17 | 1350681 | 5756.19 | 823 | 788 | 234.5 |
| D | 2 | 153 | 1162340 | 4953.07 | 823 | 788 | 234.5 |
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 |  |