Observation information
- date-obs: 2025-10-30
- time-obs: 21:52:47.522400000
- date-end: 2025-10-31
- time-end: 05:15:06.455600000
- obs_id: A14_127T09_9000006520
- exposure: 22816.9860368
- 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_54593cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54593cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,743,131,520 | 349,467,840 |
| Size | 1.6 GB
| 333.3 MB
|
| Events in quadrant A | 18,455,738 | 2,269,850 |
| Events in quadrant B | 12,483,226 | 2,469,536 |
| Events in quadrant C | 15,865,880 | 2,113,031 |
| Events in quadrant D | 15,835,841 | 2,051,153 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 71877 | 3 |
| B | 0 | 55550 | 3 |
| C | 0 | 65025 | 3 |
| D | 0 | 64258 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 496 | 0 |
| B | 0 | 496 | 0 |
| C | 0 | 496 | 0 |
| D | 0 | 496 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 24379 | 1278 | 5.242217% |
| B | 24379 | 545 | 2.235531% |
| C | 24380 | 1521 | 6.238720% |
| D | 24380 | 742 | 3.043478% |
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 | 26539 | 24383 | 821 | 821 | 3.09% | 3.37% |  |
| B | 26539 | 24383 | 186 | 186 | 0.70% | 0.76% |  |
| C | 26540 | 24384 | 1286 | 1286 | 4.85% | 5.27% |  |
| D | 26540 | 24384 | 595 | 595 | 2.24% | 2.44% |  |
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 | 14 | 6192565 | 9617.79 | 2604 | 2536 | 643.6 |
| A | 11 | 3 | 1537177 | 2384.46 | 2604 | 2536 | 643.6 |
| A | 4 | 3 | 202715 | 311.03 | 2604 | 2536 | 643.6 |
| B | 10 | 14 | 610371 | 1082.92 | 2620 | 2522 | 561.3 |
| B | 6 | 255 | 465591 | 824.99 | 2620 | 2522 | 561.3 |
| B | 10 | 247 | 405573 | 718.06 | 2620 | 2522 | 561.3 |
| C | 13 | 3 | 3345721 | 4833.17 | 2526 | 2504 | 691.7 |
| C | 4 | 5 | 1404019 | 2026.12 | 2526 | 2504 | 691.7 |
| C | 9 | 38 | 322861 | 463.13 | 2526 | 2504 | 691.7 |
| D | 3 | 12 | 1918379 | 2655.49 | 2537 | 2426 | 721.5 |
| D | 2 | 172 | 1465411 | 2027.68 | 2537 | 2426 | 721.5 |
| D | 15 | 94 | 604223 | 834.08 | 2537 | 2426 | 721.5 |
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 |  |