Observation information
- date-obs: 2022-01-17
- time-obs: 02:10:25.976200000
- date-end: 2022-01-17
- time-end: 04:23:47.968800000
- obs_id: A05_208T01_9000004870
- exposure: 3232.63594368
- 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_34089cztM0_level2.evt
| modeM0/AS1A05_208T01_9000004870_34089cztM0_level2_quad_clean.evt
|
| Size (bytes) | 523,537,920 | 75,732,480 |
| Size | 499.3 MB
| 72.2 MB
|
| Events in quadrant A | 2,596,190 | 500,431 |
| Events in quadrant B | 4,150,767 | 508,801 |
| Events in quadrant C | 3,236,627 | 488,612 |
| Events in quadrant D | 5,519,057 | 430,382 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 29 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10665 | 2 |
| B | 0 | 15697 | 1 |
| C | 0 | 12745 | 1 |
| D | 0 | 19951 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5208 | 10 | 0.192012% |
| B | 5208 | 393 | 7.546083% |
| C | 5208 | 122 | 2.342550% |
| D | 5208 | 734 | 14.093702% |
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 | 7301 | 5209 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7301 | 5209 | 236 | 236 | 3.23% | 4.53% |  |
| C | 7301 | 5209 | 105 | 105 | 1.44% | 2.02% |  |
| D | 7301 | 5209 | 758 | 758 | 10.38% | 14.55% |  |
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 | 19322 | 142.15 | 666 | 656 | 131.3 |
| A | 13 | 254 | 8214 | 57.56 | 666 | 656 | 131.3 |
| A | 13 | 6 | 7559 | 52.57 | 666 | 656 | 131.3 |
| B | 5 | 31 | 769225 | 6205.11 | 650 | 633 | 123.9 |
| B | 5 | 172 | 471729 | 3803.32 | 650 | 633 | 123.9 |
| B | 5 | 15 | 270387 | 2177.82 | 650 | 633 | 123.9 |
| C | 0 | 10 | 371644 | 2532.59 | 642 | 649 | 146.5 |
| C | 15 | 214 | 227369 | 1547.7 | 642 | 649 | 146.5 |
| C | 14 | 67 | 83723 | 567.1 | 642 | 649 | 146.5 |
| D | 12 | 16 | 1678352 | 11364.06 | 604 | 589 | 147.6 |
| D | 2 | 250 | 622820 | 4214.58 | 604 | 589 | 147.6 |
| D | 8 | 195 | 421049 | 2847.92 | 604 | 589 | 147.6 |
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 |  |