Observation information
- date-obs: 2026-04-20
- time-obs: 02:06:13.142600000
- date-end: 2026-04-20
- time-end: 04:32:59.119600000
- obs_id: A14_083T10_9000006566
- exposure: 3212.44049895
- sourceid: NGC1249
- observer: Rakshit
- ra_pnt: 47.50507
- dec_pnt: -53.33584
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T10_9000006566_57134cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57134cztM0_level2_quad_clean.evt
|
| Size (bytes) | 773,012,160 | 81,858,240 |
| Size | 737.2 MB
| 78.1 MB
|
| Events in quadrant A | 3,001,133 | 657,496 |
| Events in quadrant B | 3,722,853 | 692,262 |
| Events in quadrant C | 8,167,130 | 374,821 |
| Events in quadrant D | 13,192,609 | 277,783 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14111 | 2 |
| B | 0 | 15969 | 2 |
| C | 0 | 28999 | 8 |
| D | 0 | 43938 | 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 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6837 | 77 | 1.126225% |
| B | 6837 | 305 | 4.461021% |
| C | 6836 | 2849 | 41.676419% |
| D | 6836 | 3813 | 55.778233% |
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 | 8807 | 6839 | 6 | 6 | 0.07% | 0.09% |  |
| B | 8807 | 6838 | 95 | 95 | 1.08% | 1.39% |  |
| C | 8805 | 6835 | 2240 | 2240 | 25.44% | 32.77% |  |
| D | 8805 | 6835 | 3864 | 3864 | 43.88% | 56.53% |  |
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 | 251 | 34364 | 181.02 | 751 | 731 | 185.8 |
| A | 5 | 113 | 27969 | 146.6 | 751 | 731 | 185.8 |
| A | 13 | 248 | 14200 | 72.49 | 751 | 731 | 185.8 |
| B | 10 | 16 | 546763 | 3472.06 | 739 | 711 | 157.3 |
| B | 5 | 185 | 88023 | 555.17 | 739 | 711 | 157.3 |
| B | 0 | 213 | 33430 | 208.04 | 739 | 711 | 157.3 |
| C | 15 | 198 | 5946467 | 42532.02 | 512 | 507 | 139.8 |
| C | 12 | 252 | 125084 | 891.11 | 512 | 507 | 139.8 |
| C | 14 | 254 | 59849 | 424.48 | 512 | 507 | 139.8 |
| D | 15 | 142 | 10111480 | 63965.8 | 560 | 534 | 158.1 |
| D | 12 | 33 | 608401 | 3845.6 | 560 | 534 | 158.1 |
| D | 8 | 240 | 83748 | 526.44 | 560 | 534 | 158.1 |
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 |  |