Observation information
- date-obs: 2026-02-16
- time-obs: 19:35:52.221400000
- date-end: 2026-02-17
- time-end: 01:18:05.172900000
- obs_id: A14_083T04_9000006550
- exposure: 9889.2816329
- sourceid: NGC1522
- observer: Rakshit
- ra_pnt: 61.533
- dec_pnt: -52.66842
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T04_9000006550_56210cztM0_level2.fits
| modeM0/AS1A14_083T04_9000006550_56210cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,009,767,680 | 199,860,480 |
| Size | 1.9 GB
| 190.6 MB
|
| Events in quadrant A | 35,305,605 | 797,194 |
| Events in quadrant B | 11,146,068 | 1,427,488 |
| Events in quadrant C | 11,869,040 | 1,296,449 |
| Events in quadrant D | 14,566,672 | 1,183,411 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 396 | 0 |
| B | 0 | 396 | 0 |
| C | 0 | 396 | 0 |
| D | 0 | 396 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118182 | 3 |
| B | 0 | 46905 | 3 |
| C | 0 | 49929 | 4 |
| D | 0 | 57778 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19513 | 10432 | 53.461795% |
| B | 19514 | 539 | 2.762120% |
| C | 19513 | 956 | 4.899298% |
| D | 19513 | 1679 | 8.604520% |
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 | 20816 | 19790 | 10038 | 10038 | 48.22% | 50.72% |  |
| B | 20818 | 19800 | 252 | 252 | 1.21% | 1.27% |  |
| C | 20817 | 19798 | 814 | 814 | 3.91% | 4.11% |  |
| D | 20817 | 19723 | 1469 | 1469 | 7.06% | 7.45% |  |
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 | 10810939 | 29332.29 | 1482 | 1447 | 368.5 |
| A | 12 | 115 | 10442593 | 28332.75 | 1482 | 1447 | 368.5 |
| A | 15 | 32 | 3720864 | 10092.89 | 1482 | 1447 | 368.5 |
| B | 4 | 171 | 1182756 | 2721.56 | 2037 | 1959 | 433.9 |
| B | 5 | 185 | 428092 | 982.17 | 2037 | 1959 | 433.9 |
| B | 0 | 171 | 280672 | 642.39 | 2037 | 1959 | 433.9 |
| C | 12 | 254 | 2877432 | 5369.05 | 1965 | 1952 | 535.6 |
| C | 12 | 252 | 678223 | 1262.72 | 1965 | 1952 | 535.6 |
| C | 15 | 250 | 113559 | 208.39 | 1965 | 1952 | 535.6 |
| D | 11 | 129 | 1380375 | 2544.37 | 1909 | 1821 | 541.8 |
| D | 6 | 239 | 1242229 | 2289.4 | 1909 | 1821 | 541.8 |
| D | 13 | 153 | 1224194 | 2256.11 | 1909 | 1821 | 541.8 |
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 |  |