Observation information
- date-obs: 2026-04-14
- time-obs: 05:57:34.451700000
- date-end: 2026-04-14
- time-end: 08:05:28.431500000
- obs_id: A14_083T10_9000006566
- exposure: 6515.61507374
- 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_57047cztM0_level2.fits
| modeM0/AS1A14_083T10_9000006566_57047cztM0_level2_quad_clean.evt
|
| Size (bytes) | 426,300,480 | 101,027,520 |
| Size | 406.6 MB
| 96.3 MB
|
| Events in quadrant A | 3,702,518 | 655,549 |
| Events in quadrant B | 3,843,063 | 692,346 |
| Events in quadrant C | 3,696,522 | 638,203 |
| Events in quadrant D | 3,999,904 | 591,242 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15997 | 2 |
| B | 0 | 16322 | 2 |
| C | 0 | 15742 | 2 |
| D | 0 | 16688 | 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 | 6917 | 242 | 3.498627% |
| B | 6916 | 344 | 4.973973% |
| C | 6916 | 166 | 2.400231% |
| D | 6916 | 241 | 3.484673% |
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 | 7657 | 6918 | 83 | 83 | 1.08% | 1.20% |  |
| B | 7656 | 6916 | 95 | 95 | 1.24% | 1.37% |  |
| C | 7656 | 6917 | 25 | 25 | 0.33% | 0.36% |  |
| D | 7656 | 6916 | 116 | 116 | 1.52% | 1.68% |  |
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 | 511444 | 2735.45 | 764 | 744 | 186.7 |
| A | 3 | 14 | 75368 | 399.7 | 764 | 744 | 186.7 |
| A | 3 | 245 | 61228 | 323.97 | 764 | 744 | 186.7 |
| B | 10 | 16 | 321130 | 2029.13 | 741 | 714 | 157.9 |
| B | 5 | 185 | 260683 | 1646.33 | 741 | 714 | 157.9 |
| B | 0 | 63 | 153427 | 967.1 | 741 | 714 | 157.9 |
| C | 1 | 16 | 197833 | 968.97 | 748 | 737 | 203.4 |
| C | 15 | 209 | 124528 | 608.59 | 748 | 737 | 203.4 |
| C | 15 | 198 | 93317 | 455.15 | 748 | 737 | 203.4 |
| D | 12 | 33 | 359240 | 1708.39 | 744 | 708 | 209.9 |
| D | 7 | 96 | 126176 | 597.85 | 744 | 708 | 209.9 |
| D | 12 | 3 | 123026 | 582.84 | 744 | 708 | 209.9 |
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 |  |