Observation information
- date-obs: 2024-05-17
- time-obs: 09:37:28.458300000
- date-end: 2024-05-17
- time-end: 13:31:48.447900000
- obs_id: A13_037T01_9000006256
- exposure: 11955.8106248
- 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_46700cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46700cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,112,999,040 | 198,109,440 |
| Size | 1.0 GB
| 188.9 MB
|
| Events in quadrant A | 12,619,515 | 1,335,834 |
| Events in quadrant B | 7,454,499 | 1,359,815 |
| Events in quadrant C | 8,997,950 | 1,280,628 |
| Events in quadrant D | 11,115,688 | 1,114,890 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46647 | 2 |
| B | 0 | 31137 | 2 |
| C | 0 | 35950 | 2 |
| D | 0 | 42109 | 7 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 268 | 0 |
| B | 0 | 268 | 0 |
| C | 0 | 268 | 0 |
| D | 0 | 268 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 13115 | 410 | 3.126191% |
| B | 13115 | 554 | 4.224171% |
| C | 13116 | 569 | 4.338213% |
| D | 13114 | 1261 | 9.615678% |
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 | 14060 | 13116 | 32 | 32 | 0.23% | 0.24% |  |
| B | 14060 | 13116 | 132 | 132 | 0.94% | 1.01% |  |
| C | 14061 | 13117 | 382 | 382 | 2.72% | 2.91% |  |
| D | 14060 | 13116 | 947 | 947 | 6.74% | 7.22% |  |
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 | 6619731 | 22272.96 | 1431 | 1400 | 297.1 |
| A | 13 | 248 | 149065 | 496.94 | 1431 | 1400 | 297.1 |
| A | 9 | 191 | 111752 | 371.37 | 1431 | 1400 | 297.1 |
| B | 15 | 36 | 864462 | 3074.85 | 1419 | 1377 | 280.7 |
| B | 4 | 171 | 330177 | 1171.39 | 1419 | 1377 | 280.7 |
| B | 3 | 112 | 126827 | 446.93 | 1419 | 1377 | 280.7 |
| C | 5 | 250 | 2854430 | 8803.56 | 1382 | 1391 | 324.1 |
| C | 8 | 131 | 346231 | 1064.07 | 1382 | 1391 | 324.1 |
| C | 12 | 2 | 175782 | 538.11 | 1382 | 1391 | 324.1 |
| D | 1 | 52 | 3686981 | 10725.99 | 1366 | 1321 | 343.6 |
| D | 13 | 249 | 638662 | 1854.79 | 1366 | 1321 | 343.6 |
| D | 2 | 37 | 278483 | 806.6 | 1366 | 1321 | 343.6 |
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 |  |