Observation information
- date-obs: 2021-02-04
- time-obs: 22:34:39.914800000
- date-end: 2021-02-05
- time-end: 01:08:27.912200000
- obs_id: A10_048T03_9000004154
- exposure: 4892.77927814
- sourceid: NGC 4981
- observer: chayan
- ra_pnt: 197.2029
- dec_pnt: -6.7775
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T03_9000004154_28965cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28965cztM0_level2_quad_clean.evt
|
| Size (bytes) | 532,232,640 | 110,684,160 |
| Size | 507.6 MB
| 105.6 MB
|
| Events in quadrant A | 3,528,651 | 733,745 |
| Events in quadrant B | 3,606,950 | 761,399 |
| Events in quadrant C | 3,481,014 | 716,323 |
| Events in quadrant D | 5,054,739 | 680,707 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14575 | 2 |
| B | 0 | 14702 | 2 |
| C | 0 | 14301 | 2 |
| D | 0 | 19559 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6598 | 86 | 1.303425% |
| B | 6599 | 173 | 2.621609% |
| C | 6599 | 132 | 2.000303% |
| D | 6599 | 239 | 3.621761% |
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 | 9228 | 6597 | 24 | 24 | 0.26% | 0.36% |  |
| B | 9229 | 6598 | 43 | 43 | 0.47% | 0.65% |  |
| C | 9229 | 6598 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9229 | 6598 | 50 | 50 | 0.54% | 0.76% |  |
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 | 96 | 176918 | 1020.06 | 865 | 849 | 172.6 |
| A | 1 | 113 | 15909 | 87.25 | 865 | 849 | 172.6 |
| A | 13 | 254 | 11608 | 62.33 | 865 | 849 | 172.6 |
| B | 10 | 245 | 196228 | 1191.83 | 868 | 848 | 163.9 |
| B | 12 | 111 | 19793 | 115.57 | 868 | 848 | 163.9 |
| B | 11 | 111 | 17917 | 104.12 | 868 | 848 | 163.9 |
| C | 14 | 238 | 150648 | 770.67 | 836 | 844 | 194.4 |
| C | 3 | 233 | 33008 | 165.47 | 836 | 844 | 194.4 |
| C | 14 | 254 | 23446 | 116.28 | 836 | 844 | 194.4 |
| D | 8 | 195 | 1045143 | 5333.51 | 821 | 800 | 195.8 |
| D | 1 | 52 | 833316 | 4251.7 | 821 | 800 | 195.8 |
| D | 5 | 233 | 32783 | 163.34 | 821 | 800 | 195.8 |
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 |  |