Observation information
- date-obs: 2026-04-17
- time-obs: 05:09:19.784800000
- date-end: 2026-04-17
- time-end: 07:12:09.765000000
- obs_id: A14_083T10_9000006566
- exposure: 6371.12409496
- 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_57091cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57091cztM0_level2_quad_clean.evt
|
| Size (bytes) | 484,796,160 | 97,243,200 |
| Size | 462.3 MB
| 92.7 MB
|
| Events in quadrant A | 4,700,870 | 624,705 |
| Events in quadrant B | 3,577,897 | 682,410 |
| Events in quadrant C | 4,573,241 | 597,490 |
| Events in quadrant D | 4,565,185 | 565,821 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18681 | 2 |
| B | 0 | 15440 | 2 |
| C | 0 | 18365 | 2 |
| D | 0 | 18211 | 6 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6801 | 407 | 5.984414% |
| B | 6801 | 247 | 3.631819% |
| C | 6801 | 449 | 6.601970% |
| D | 6800 | 316 | 4.647059% |
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 | 7371 | 6803 | 242 | 242 | 3.28% | 3.56% |  |
| B | 7371 | 6803 | 60 | 60 | 0.81% | 0.88% |  |
| C | 7371 | 6803 | 266 | 266 | 3.61% | 3.91% |  |
| D | 7370 | 6802 | 142 | 142 | 1.93% | 2.09% |  |
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 | 1643431 | 9100.45 | 737 | 717 | 180.5 |
| A | 4 | 13 | 92641 | 509.25 | 737 | 717 | 180.5 |
| A | 5 | 113 | 40479 | 220.28 | 737 | 717 | 180.5 |
| B | 10 | 16 | 375036 | 2406.3 | 725 | 697 | 155.6 |
| B | 4 | 171 | 141094 | 902.49 | 725 | 697 | 155.6 |
| B | 7 | 252 | 53200 | 337.5 | 725 | 697 | 155.6 |
| C | 15 | 198 | 604100 | 3088.08 | 718 | 709 | 195.4 |
| C | 14 | 245 | 289733 | 1479.19 | 718 | 709 | 195.4 |
| C | 2 | 12 | 166654 | 849.29 | 718 | 709 | 195.4 |
| D | 15 | 142 | 672885 | 3320.79 | 718 | 683 | 202.4 |
| D | 12 | 33 | 647561 | 3195.68 | 718 | 683 | 202.4 |
| D | 2 | 249 | 135067 | 663.88 | 718 | 683 | 202.4 |
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 |  |