Observation information
- date-obs: 2026-04-15
- time-obs: 01:04:08.270900000
- date-end: 2026-04-15
- time-end: 03:10:53.250200000
- obs_id: A14_083T10_9000006566
- exposure: 6068.61093318
- 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_57059cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57059cztM0_level2_quad_clean.evt
|
| Size (bytes) | 393,367,680 | 98,637,120 |
| Size | 375.1 MB
| 94.1 MB
|
| Events in quadrant A | 3,119,206 | 652,982 |
| Events in quadrant B | 3,459,705 | 686,930 |
| Events in quadrant C | 3,238,436 | 627,445 |
| Events in quadrant D | 4,245,286 | 572,622 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13803 | 2 |
| B | 0 | 14695 | 2 |
| C | 0 | 14034 | 2 |
| D | 0 | 16895 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6405 | 87 | 1.358314% |
| B | 6406 | 292 | 4.558227% |
| C | 6406 | 68 | 1.061505% |
| D | 6406 | 247 | 3.855760% |
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 | 7605 | 6406 | 43 | 43 | 0.57% | 0.67% |  |
| B | 7606 | 6406 | 150 | 150 | 1.97% | 2.34% |  |
| C | 7606 | 6407 | 20 | 20 | 0.26% | 0.31% |  |
| D | 7606 | 6407 | 211 | 211 | 2.77% | 3.29% |  |
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 | 7 | 64 | 187628 | 1056.79 | 720 | 704 | 176.9 |
| A | 3 | 245 | 37527 | 208.18 | 720 | 704 | 176.9 |
| A | 4 | 207 | 33201 | 183.72 | 720 | 704 | 176.9 |
| B | 10 | 16 | 481896 | 3269.81 | 698 | 672 | 147.2 |
| B | 0 | 63 | 60458 | 406.23 | 698 | 672 | 147.2 |
| B | 0 | 213 | 59123 | 397.16 | 698 | 672 | 147.2 |
| C | 15 | 209 | 153293 | 803.38 | 706 | 700 | 189.9 |
| C | 14 | 254 | 115267 | 603.18 | 706 | 700 | 189.9 |
| C | 6 | 223 | 58636 | 305.02 | 706 | 700 | 189.9 |
| D | 15 | 142 | 696592 | 3506.2 | 692 | 659 | 198.5 |
| D | 12 | 33 | 338440 | 1701.78 | 692 | 659 | 198.5 |
| D | 7 | 96 | 144942 | 726.92 | 692 | 659 | 198.5 |
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 |  |