Observation information
- date-obs: 2026-03-24
- time-obs: 17:36:08.966700000
- date-end: 2026-03-24
- time-end: 19:38:24.943600000
- obs_id: A14_083T05_9000006560
- exposure: 6286.15976614
- sourceid: NGC1556
- observer: Rakshit
- ra_pnt: 64.43679
- dec_pnt: -50.16444
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T05_9000006560_56742cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006560_56742cztM0_level2_quad_clean.evt
|
| Size (bytes) | 405,599,040 | 95,742,720 |
| Size | 386.8 MB
| 91.3 MB
|
| Events in quadrant A | 4,138,806 | 621,728 |
| Events in quadrant B | 3,658,614 | 659,621 |
| Events in quadrant C | 3,690,686 | 587,907 |
| Events in quadrant D | 3,011,979 | 569,870 |
Level1 data integrity
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16761 | 1 |
| B | 0 | 15750 | 1 |
| C | 0 | 16038 | 1 |
| D | 0 | 13902 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6601 | 172 | 2.605666% |
| B | 6602 | 269 | 4.074523% |
| C | 6602 | 211 | 3.196001% |
| D | 6602 | 23 | 0.348379% |
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 | 7336 | 6602 | 136 | 136 | 1.85% | 2.06% |  |
| B | 7337 | 6603 | 136 | 136 | 1.85% | 2.06% |  |
| C | 7337 | 6603 | 193 | 193 | 2.63% | 2.92% |  |
| D | 7337 | 6603 | 10 | 10 | 0.14% | 0.15% |  |
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 | 3 | 14 | 868257 | 5003.39 | 692 | 675 | 173.4 |
| A | 3 | 62 | 390031 | 2245.44 | 692 | 675 | 173.4 |
| A | 10 | 251 | 158265 | 908.83 | 692 | 675 | 173.4 |
| B | 4 | 206 | 422106 | 2865.34 | 681 | 655 | 147.1 |
| B | 5 | 185 | 288105 | 1954.3 | 681 | 655 | 147.1 |
| B | 8 | 128 | 75140 | 506.4 | 681 | 655 | 147.1 |
| C | 15 | 230 | 678681 | 3701.64 | 664 | 656 | 183.2 |
| C | 13 | 3 | 159174 | 865.42 | 664 | 656 | 183.2 |
| C | 15 | 208 | 149011 | 809.94 | 664 | 656 | 183.2 |
| D | 5 | 113 | 82383 | 426.65 | 670 | 638 | 191.6 |
| D | 2 | 249 | 59622 | 307.85 | 670 | 638 | 191.6 |
| D | 2 | 31 | 58903 | 304.1 | 670 | 638 | 191.6 |
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 |  |