Observation information
- date-obs: 2025-10-27
- time-obs: 00:01:29.336700000
- date-end: 2025-10-27
- time-end: 02:23:56.315900000
- obs_id: A14_127T09_9000006520
- exposure: 5745.11319476
- sourceid: PG0909+276
- observer: snehalata
- ra_pnt: 138.2153
- dec_pnt: 27.34205
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_127T09_9000006520_54532cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54532cztM0_level2_quad_clean.evt
|
| Size (bytes) | 530,038,080 | 98,642,880 |
| Size | 505.5 MB
| 94.1 MB
|
| Events in quadrant A | 3,498,937 | 670,074 |
| Events in quadrant B | 4,091,554 | 699,567 |
| Events in quadrant C | 7,813,296 | 538,251 |
| Events in quadrant D | 3,680,041 | 598,028 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15421 | 2 |
| B | 0 | 17079 | 2 |
| C | 0 | 28179 | 2 |
| D | 0 | 15964 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6903 | 118 | 1.709402% |
| B | 6903 | 318 | 4.606693% |
| C | 6903 | 1431 | 20.730117% |
| D | 6903 | 104 | 1.506591% |
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 | 7978 | 6904 | 88 | 88 | 1.10% | 1.27% |  |
| B | 7978 | 6904 | 204 | 204 | 2.56% | 2.95% |  |
| C | 7978 | 6904 | 1293 | 1293 | 16.21% | 18.73% |  |
| D | 7978 | 6904 | 100 | 100 | 1.25% | 1.45% |  |
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 | 4 | 249 | 467771 | 2532.38 | 745 | 729 | 184.4 |
| A | 3 | 110 | 36835 | 195.77 | 745 | 729 | 184.4 |
| A | 4 | 3 | 28591 | 151.07 | 745 | 729 | 184.4 |
| B | 5 | 185 | 619622 | 3890.2 | 739 | 713 | 159.1 |
| B | 1 | 207 | 201410 | 1261.5 | 739 | 713 | 159.1 |
| B | 10 | 14 | 170226 | 1065.49 | 739 | 713 | 159.1 |
| C | 4 | 5 | 4373150 | 23818.88 | 666 | 659 | 183.6 |
| C | 12 | 252 | 440218 | 2394.47 | 666 | 659 | 183.6 |
| C | 1 | 16 | 79829 | 431.27 | 666 | 659 | 183.6 |
| D | 2 | 172 | 315879 | 1527.07 | 719 | 685 | 206.4 |
| D | 3 | 224 | 192563 | 929.62 | 719 | 685 | 206.4 |
| D | 6 | 239 | 177645 | 857.35 | 719 | 685 | 206.4 |
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 |  |