Observation information
- date-obs: 2026-03-06
- time-obs: 05:33:13.806000000
- date-end: 2026-03-06
- time-end: 07:43:03.789800000
- obs_id: A14_060T01_9000006556
- exposure: 5275.80511922
- 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_56467cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56467cztM0_level2_quad_clean.evt
|
| Size (bytes) | 742,034,880 | 103,141,440 |
| Size | 707.7 MB
| 98.4 MB
|
| Events in quadrant A | 12,104,469 | 492,915 |
| Events in quadrant B | 3,900,227 | 785,716 |
| Events in quadrant C | 5,014,710 | 687,484 |
| Events in quadrant D | 5,844,533 | 614,839 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 41307 | 0 |
| B | 0 | 17118 | 0 |
| C | 0 | 20518 | 0 |
| D | 0 | 22638 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7790 | 2845 | 36.521181% |
| B | 7790 | 170 | 2.182285% |
| C | 7791 | 315 | 4.043127% |
| D | 7790 | 607 | 7.792041% |
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 | 7790 | 7790 | 2503 | 2503 | 32.13% | 32.13% |  |
| B | 7790 | 7790 | 30 | 30 | 0.39% | 0.39% |  |
| C | 7791 | 7791 | 265 | 265 | 3.40% | 3.40% |  |
| D | 7790 | 7790 | 515 | 515 | 6.61% | 6.61% |  |
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 | 3834544 | 21151.26 | 731 | 713 | 181.3 |
| A | 12 | 3 | 2598497 | 14331.99 | 731 | 713 | 181.3 |
| A | 4 | 206 | 1209804 | 6670.56 | 731 | 713 | 181.3 |
| B | 5 | 172 | 133987 | 735.35 | 851 | 818 | 181.1 |
| B | 0 | 213 | 81031 | 442.93 | 851 | 818 | 181.1 |
| B | 7 | 252 | 69187 | 377.53 | 851 | 818 | 181.1 |
| C | 15 | 230 | 1210728 | 5376.23 | 830 | 823 | 225.0 |
| C | 13 | 3 | 288893 | 1280.04 | 830 | 823 | 225.0 |
| C | 12 | 252 | 104275 | 459.69 | 830 | 823 | 225.0 |
| D | 2 | 249 | 1179590 | 5187.7 | 811 | 773 | 227.2 |
| D | 12 | 4 | 429872 | 1888.36 | 811 | 773 | 227.2 |
| D | 8 | 129 | 240762 | 1056.14 | 811 | 773 | 227.2 |
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 |  |