Observation information
- date-obs: 2026-07-14
- time-obs: 04:37:48.880700000
- date-end: 2026-07-14
- time-end: 07:05:13.861800000
- obs_id: A14_045T01_9000006590
- exposure: 5778.94497675
- sourceid: NGC 4383
- observer: ujjwalkrishnan
- ra_pnt: 186.3563
- dec_pnt: 16.47013
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_045T01_9000006590_58399cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58399cztM0_level2_quad_clean.evt
|
| Size (bytes) | 716,644,800 | 97,735,680 |
| Size | 683.4 MB
| 93.2 MB
|
| Events in quadrant A | 7,218,695 | 563,557 |
| Events in quadrant B | 4,182,388 | 719,162 |
| Events in quadrant C | 7,419,862 | 570,705 |
| Events in quadrant D | 7,143,001 | 598,863 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26452 | 2 |
| B | 0 | 17342 | 2 |
| C | 0 | 27086 | 3 |
| D | 0 | 26406 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7280 | 1603 | 22.019231% |
| B | 7281 | 523 | 7.183079% |
| C | 7280 | 1349 | 18.530220% |
| D | 7280 | 448 | 6.153846% |
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 | 8845 | 7282 | 963 | 963 | 10.89% | 13.22% |  |
| B | 8846 | 7283 | 146 | 146 | 1.65% | 2.00% |  |
| C | 8845 | 7282 | 822 | 822 | 9.29% | 11.29% |  |
| D | 8845 | 7282 | 150 | 150 | 1.70% | 2.06% |  |
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 | 12 | 114 | 2602845 | 13356.0 | 790 | 770 | 194.8 |
| A | 12 | 80 | 1224100 | 6279.14 | 790 | 770 | 194.8 |
| A | 13 | 248 | 151044 | 771.33 | 790 | 770 | 194.8 |
| B | 6 | 255 | 373155 | 2068.3 | 830 | 799 | 180.0 |
| B | 4 | 201 | 127463 | 703.57 | 830 | 799 | 180.0 |
| B | 2 | 249 | 85885 | 472.62 | 830 | 799 | 180.0 |
| C | 6 | 223 | 2455925 | 11830.14 | 758 | 751 | 207.5 |
| C | 9 | 38 | 989557 | 4764.51 | 758 | 751 | 207.5 |
| C | 5 | 10 | 532999 | 2564.61 | 758 | 751 | 207.5 |
| D | 5 | 113 | 2923128 | 12891.2 | 805 | 769 | 226.7 |
| D | 8 | 240 | 576376 | 2539.13 | 805 | 769 | 226.7 |
| D | 11 | 129 | 183624 | 806.62 | 805 | 769 | 226.7 |
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 |  |