Observation information
- date-obs: 2026-03-07
- time-obs: 05:47:08.613800000
- date-end: 2026-03-07
- time-end: 07:59:48.598300000
- obs_id: A14_060T01_9000006556
- exposure: 6078.77539182
- sourceid: NGC1437A
- observer: Mpati
- ra_pnt: 55.79948
- dec_pnt: -36.29873
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_060T01_9000006556_56482cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56482cztM0_level2_quad_clean.evt
|
| Size (bytes) | 650,782,080 | 107,225,280 |
| Size | 620.6 MB
| 102.3 MB
|
| Events in quadrant A | 5,651,519 | 718,725 |
| Events in quadrant B | 7,146,864 | 632,590 |
| Events in quadrant C | 4,145,295 | 711,758 |
| Events in quadrant D | 6,528,220 | 629,876 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22286 | 0 |
| B | 0 | 26708 | 0 |
| C | 0 | 18120 | 0 |
| D | 0 | 24843 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 160 | 0 |
| B | 0 | 160 | 0 |
| C | 0 | 160 | 0 |
| D | 0 | 160 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7960 | 356 | 4.472362% |
| B | 7960 | 1914 | 24.045226% |
| C | 7961 | 200 | 2.512247% |
| D | 7961 | 633 | 7.951262% |
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 | 7960 | 7960 | 176 | 176 | 2.21% | 2.21% |  |
| B | 7960 | 7960 | 1180 | 1180 | 14.82% | 14.82% |  |
| C | 7961 | 7961 | 123 | 123 | 1.55% | 1.55% |  |
| D | 7961 | 7961 | 507 | 507 | 6.37% | 6.37% |  |
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 | 95 | 1305989 | 6108.75 | 862 | 840 | 213.7 |
| A | 7 | 64 | 286101 | 1335.16 | 862 | 840 | 213.7 |
| A | 12 | 3 | 285358 | 1331.69 | 862 | 840 | 213.7 |
| B | 5 | 172 | 3765795 | 22897.61 | 769 | 742 | 164.4 |
| B | 4 | 21 | 106536 | 643.4 | 769 | 742 | 164.4 |
| B | 0 | 63 | 101187 | 610.87 | 769 | 742 | 164.4 |
| C | 15 | 230 | 407330 | 1746.59 | 854 | 846 | 232.7 |
| C | 12 | 252 | 150356 | 642.42 | 854 | 846 | 232.7 |
| C | 12 | 249 | 131952 | 563.34 | 854 | 846 | 232.7 |
| D | 2 | 249 | 1389068 | 6006.29 | 823 | 787 | 231.1 |
| D | 12 | 4 | 507423 | 2191.92 | 823 | 787 | 231.1 |
| D | 11 | 176 | 398277 | 1719.71 | 823 | 787 | 231.1 |
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 |  |