Observation information
- date-obs: 2024-08-17
- time-obs: 12:34:03.477700000
- date-end: 2024-08-17
- time-end: 14:44:58.466300000
- obs_id: A13_024T01_9000006394
- exposure: 6471.46370047
- sourceid: NGC 991
- observer: amrutha
- ra_pnt: 38.88617
- dec_pnt: -7.154436
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_024T01_9000006394_48065cztM0_level2.fits
| modeM0/AS1A13_024T01_9000006394_48065cztM0_level2_quad_clean.evt
|
| Size (bytes) | 500,457,600 | 108,587,520 |
| Size | 477.3 MB
| 103.6 MB
|
| Events in quadrant A | 7,440,142 | 704,498 |
| Events in quadrant B | 3,356,596 | 745,663 |
| Events in quadrant C | 3,311,091 | 706,874 |
| Events in quadrant D | 3,882,635 | 650,537 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 2 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27054 | 52 |
| B | 0 | 14737 | 10 |
| C | 0 | 14943 | 27 |
| D | 0 | 16195 | 28 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6888 | 419 | 6.083043% |
| B | 6898 | 122 | 1.768629% |
| C | 6893 | 137 | 1.987524% |
| D | 6889 | 174 | 2.525766% |
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 | 7793 | 6898 | 73 | 73 | 0.94% | 1.06% |  |
| B | 7793 | 6901 | 13 | 13 | 0.17% | 0.19% |  |
| C | 7792 | 6900 | 59 | 59 | 0.76% | 0.86% |  |
| D | 7792 | 6897 | 58 | 58 | 0.74% | 0.84% |  |
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 | 10 | 83 | 4184325 | 25732.1 | 776 | 759 | 162.6 |
| A | 13 | 248 | 166718 | 1020.77 | 776 | 759 | 162.6 |
| A | 0 | 31 | 67843 | 412.62 | 776 | 759 | 162.6 |
| B | 7 | 221 | 150503 | 950.16 | 782 | 758 | 157.6 |
| B | 5 | 32 | 66106 | 414.64 | 782 | 758 | 157.6 |
| B | 0 | 197 | 21627 | 132.42 | 782 | 758 | 157.6 |
| C | 12 | 2 | 301601 | 1654.17 | 768 | 770 | 181.9 |
| C | 14 | 254 | 10861 | 55.49 | 768 | 770 | 181.9 |
| C | 13 | 61 | 5207 | 24.4 | 768 | 770 | 181.9 |
| D | 2 | 249 | 374406 | 1938.8 | 770 | 747 | 192.7 |
| D | 2 | 165 | 162787 | 840.77 | 770 | 747 | 192.7 |
| D | 2 | 120 | 122610 | 632.31 | 770 | 747 | 192.7 |
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 |  |