Observation information
- date-obs: 2025-10-29
- time-obs: 16:14:48.783700000
- date-end: 2025-10-29
- time-end: 18:29:32.754300000
- obs_id: A14_127T09_9000006520
- exposure: 6132.55956531
- 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_54572cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54572cztM0_level2_quad_clean.evt
|
| Size (bytes) | 447,459,840 | 97,165,440 |
| Size | 426.7 MB
| 92.7 MB
|
| Events in quadrant A | 4,128,944 | 636,813 |
| Events in quadrant B | 3,871,626 | 682,174 |
| Events in quadrant C | 3,674,116 | 610,398 |
| Events in quadrant D | 4,380,342 | 556,551 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16540 | 2 |
| B | 0 | 15993 | 2 |
| C | 0 | 15527 | 2 |
| D | 0 | 17629 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6542 | 255 | 3.897891% |
| B | 6542 | 220 | 3.362886% |
| C | 6541 | 173 | 2.644856% |
| D | 6541 | 415 | 6.344596% |
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 | 7597 | 6543 | 133 | 133 | 1.75% | 2.03% |  |
| B | 7597 | 6543 | 74 | 74 | 0.97% | 1.13% |  |
| C | 7596 | 6542 | 81 | 81 | 1.07% | 1.24% |  |
| D | 7596 | 6542 | 252 | 252 | 3.32% | 3.85% |  |
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 | 658108 | 3626.28 | 737 | 719 | 181.3 |
| A | 14 | 235 | 327940 | 1805.01 | 737 | 719 | 181.3 |
| A | 8 | 6 | 77104 | 421.35 | 737 | 719 | 181.3 |
| B | 2 | 249 | 271514 | 1734.72 | 732 | 707 | 156.1 |
| B | 10 | 14 | 247314 | 1579.7 | 732 | 707 | 156.1 |
| B | 0 | 213 | 97999 | 623.23 | 732 | 707 | 156.1 |
| C | 13 | 3 | 306007 | 1539.53 | 723 | 718 | 198.3 |
| C | 3 | 248 | 119466 | 598.83 | 723 | 718 | 198.3 |
| C | 12 | 249 | 110958 | 555.93 | 723 | 718 | 198.3 |
| D | 15 | 94 | 630094 | 3136.88 | 709 | 678 | 200.7 |
| D | 3 | 12 | 438027 | 2179.66 | 709 | 678 | 200.7 |
| D | 1 | 3 | 111441 | 552.02 | 709 | 678 | 200.7 |
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 |  |