Observation information
- date-obs: 2025-10-27
- time-obs: 11:58:30.236300000
- date-end: 2025-10-27
- time-end: 16:13:20.199700000
- obs_id: A14_127T09_9000006520
- exposure: 12877.5011963
- 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_54540cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54540cztM0_level2_quad_clean.evt
|
| Size (bytes) | 924,373,440 | 190,558,080 |
| Size | 881.6 MB
| 181.7 MB
|
| Events in quadrant A | 8,138,509 | 1,248,063 |
| Events in quadrant B | 7,708,664 | 1,319,669 |
| Events in quadrant C | 8,690,886 | 1,162,589 |
| Events in quadrant D | 8,630,242 | 1,103,069 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32675 | 2 |
| B | 0 | 32376 | 2 |
| C | 0 | 35283 | 3 |
| D | 0 | 35245 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 278 | 0 |
| B | 0 | 278 | 0 |
| C | 0 | 278 | 0 |
| D | 0 | 278 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 13545 | 435 | 3.211517% |
| B | 13546 | 508 | 3.750185% |
| C | 13545 | 632 | 4.665928% |
| D | 13545 | 526 | 3.883352% |
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 | 15290 | 13545 | 156 | 156 | 1.02% | 1.15% |  |
| B | 15291 | 13546 | 184 | 184 | 1.20% | 1.36% |  |
| C | 15290 | 13545 | 409 | 409 | 2.67% | 3.02% |  |
| D | 15290 | 13545 | 309 | 309 | 2.02% | 2.28% |  |
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 | 11 | 3 | 900425 | 2445.2 | 1500 | 1458 | 367.6 |
| A | 3 | 14 | 598668 | 1624.42 | 1500 | 1458 | 367.6 |
| A | 4 | 249 | 314346 | 851.06 | 1500 | 1458 | 367.6 |
| B | 1 | 207 | 327689 | 1029.94 | 1475 | 1421 | 316.8 |
| B | 10 | 245 | 217623 | 682.49 | 1475 | 1421 | 316.8 |
| B | 0 | 216 | 212065 | 664.95 | 1475 | 1421 | 316.8 |
| C | 12 | 252 | 1526753 | 3846.6 | 1451 | 1436 | 396.5 |
| C | 13 | 3 | 465507 | 1170.31 | 1451 | 1436 | 396.5 |
| C | 15 | 209 | 296843 | 744.97 | 1451 | 1436 | 396.5 |
| D | 1 | 3 | 668579 | 1622.17 | 1455 | 1391 | 411.3 |
| D | 2 | 172 | 513030 | 1243.98 | 1455 | 1391 | 411.3 |
| D | 3 | 12 | 488415 | 1184.13 | 1455 | 1391 | 411.3 |
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 |  |