Observation information
- date-obs: 2022-03-01
- time-obs: 23:40:25.626500000
- date-end: 2022-03-02
- time-end: 01:59:52.623300000
- obs_id: A10_048T04_9000004984
- exposure: 3101.60529985
- sourceid: NGC 4984
- observer: chayan
- ra_pnt: 197.2383
- dec_pnt: -15.51631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T04_9000004984_34739cztM0_level2.evt
| modeM0/AS1A10_048T04_9000004984_34739cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,642,240 | 72,455,040 |
| Size | 481.3 MB
| 69.1 MB
|
| Events in quadrant A | 2,869,366 | 481,549 |
| Events in quadrant B | 3,371,121 | 493,010 |
| Events in quadrant C | 2,998,497 | 487,500 |
| Events in quadrant D | 5,676,473 | 351,958 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11755 | 2 |
| B | 0 | 13430 | 1 |
| C | 0 | 11910 | 1 |
| D | 0 | 20690 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29 | 0 |
| B | 0 | 29 | 0 |
| C | 0 | 29 | 0 |
| D | 0 | 30 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5425 | 14 | 0.258065% |
| B | 5425 | 69 | 1.271889% |
| C | 5425 | 26 | 0.479263% |
| D | 5425 | 980 | 18.064516% |
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 | 7366 | 5426 | 8 | 8 | 0.11% | 0.15% |  |
| B | 7366 | 5426 | 49 | 49 | 0.67% | 0.90% |  |
| C | 7366 | 5426 | 18 | 18 | 0.24% | 0.33% |  |
| D | 7365 | 5425 | 669 | 669 | 9.08% | 12.33% |  |
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 | 15 | 223 | 93007 | 684.08 | 681 | 669 | 135.0 |
| A | 10 | 83 | 48555 | 354.76 | 681 | 669 | 135.0 |
| A | 15 | 169 | 42653 | 311.04 | 681 | 669 | 135.0 |
| B | 4 | 171 | 357232 | 2818.19 | 676 | 660 | 126.5 |
| B | 0 | 190 | 152342 | 1198.83 | 676 | 660 | 126.5 |
| B | 5 | 172 | 146059 | 1149.17 | 676 | 660 | 126.5 |
| C | 15 | 214 | 230265 | 1486.03 | 671 | 681 | 154.5 |
| C | 0 | 10 | 93077 | 598.05 | 671 | 681 | 154.5 |
| C | 14 | 67 | 28136 | 177.71 | 671 | 681 | 154.5 |
| D | 10 | 118 | 1941057 | 13845.26 | 579 | 566 | 140.2 |
| D | 8 | 195 | 636613 | 4538.15 | 579 | 566 | 140.2 |
| D | 1 | 52 | 594238 | 4235.81 | 579 | 566 | 140.2 |
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 |  |