Observation information
- date-obs: 2022-01-17
- time-obs: 09:18:45.954100000
- date-end: 2022-01-17
- time-end: 11:19:30.948900000
- obs_id: A05_208T01_9000004870
- exposure: 2580.45093372
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_208T01_9000004870_34093cztM0_level2.evt
| modeM0/AS1A05_208T01_9000004870_34093cztM0_level2_quad_clean.evt
|
| Size (bytes) | 516,104,640 | 57,107,520 |
| Size | 492.2 MB
| 54.5 MB
|
| Events in quadrant A | 2,628,187 | 344,587 |
| Events in quadrant B | 3,522,220 | 343,610 |
| Events in quadrant C | 3,390,016 | 336,477 |
| Events in quadrant D | 5,707,320 | 309,289 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11347 | 3 |
| B | 0 | 13896 | 2 |
| C | 0 | 13201 | 2 |
| D | 0 | 20805 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5641 | 4 | 0.070909% |
| B | 5641 | 189 | 3.350470% |
| C | 5641 | 139 | 2.464102% |
| D | 5641 | 547 | 9.696862% |
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 | 7164 | 5642 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7164 | 5642 | 136 | 136 | 1.90% | 2.41% |  |
| C | 7164 | 5642 | 127 | 127 | 1.77% | 2.25% |  |
| D | 7164 | 5642 | 522 | 522 | 7.29% | 9.25% |  |
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 | 20486 | 146.63 | 670 | 656 | 135.2 |
| A | 13 | 6 | 17760 | 126.48 | 670 | 656 | 135.2 |
| A | 13 | 254 | 10675 | 74.09 | 670 | 656 | 135.2 |
| B | 5 | 172 | 790364 | 6174.2 | 659 | 641 | 127.9 |
| B | 0 | 189 | 32538 | 249.38 | 659 | 641 | 127.9 |
| B | 0 | 190 | 26195 | 199.79 | 659 | 641 | 127.9 |
| C | 0 | 10 | 487355 | 3211.15 | 646 | 650 | 151.6 |
| C | 15 | 214 | 244783 | 1610.73 | 646 | 650 | 151.6 |
| C | 0 | 207 | 79991 | 523.47 | 646 | 650 | 151.6 |
| D | 8 | 195 | 1027902 | 6646.94 | 627 | 609 | 154.6 |
| D | 2 | 250 | 832371 | 5381.78 | 627 | 609 | 154.6 |
| D | 10 | 118 | 524700 | 3391.05 | 627 | 609 | 154.6 |
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 |  |