Observation information
- date-obs: 2022-01-20
- time-obs: 22:28:45.909400000
- date-end: 2022-01-21
- time-end: 00:42:41.911800000
- obs_id: A11_059T05_9000004876
- exposure: 2739.92386378
- sourceid: NGC 1904
- observer: annapurni
- ra_pnt: 81.04413
- dec_pnt: -24.52425
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_059T05_9000004876_34146cztM0_level2.evt
| modeM0/AS1A11_059T05_9000004876_34146cztM0_level2_quad_clean.evt
|
| Size (bytes) | 517,694,400 | 65,802,240 |
| Size | 493.7 MB
| 62.8 MB
|
| Events in quadrant A | 2,617,231 | 426,240 |
| Events in quadrant B | 4,545,703 | 403,304 |
| Events in quadrant C | 3,502,402 | 419,471 |
| Events in quadrant D | 4,649,974 | 367,969 |
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 | 27 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10896 | 3 |
| B | 0 | 16776 | 2 |
| C | 0 | 13619 | 2 |
| D | 0 | 17329 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5351 | 5 | 0.093440% |
| B | 5351 | 649 | 12.128574% |
| C | 5351 | 139 | 2.597645% |
| D | 5351 | 538 | 10.054195% |
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 | 7354 | 5352 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7354 | 5352 | 624 | 624 | 8.49% | 11.66% |  |
| C | 7354 | 5352 | 112 | 112 | 1.52% | 2.09% |  |
| D | 7354 | 5352 | 456 | 456 | 6.20% | 8.52% |  |
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 | 20160 | 145.68 | 667 | 655 | 133.9 |
| A | 13 | 6 | 18560 | 133.73 | 667 | 655 | 133.9 |
| A | 13 | 254 | 9228 | 64.03 | 667 | 655 | 133.9 |
| B | 5 | 31 | 830893 | 6743.46 | 646 | 632 | 123.1 |
| B | 5 | 15 | 481124 | 3902.6 | 646 | 632 | 123.1 |
| B | 5 | 172 | 360806 | 2925.37 | 646 | 632 | 123.1 |
| C | 0 | 10 | 544685 | 3596.29 | 657 | 666 | 151.3 |
| C | 15 | 214 | 229248 | 1511.07 | 657 | 666 | 151.3 |
| C | 14 | 254 | 74004 | 484.81 | 657 | 666 | 151.3 |
| D | 10 | 118 | 1272490 | 8245.14 | 627 | 610 | 154.3 |
| D | 8 | 195 | 660840 | 4280.03 | 627 | 610 | 154.3 |
| D | 12 | 217 | 88535 | 569.99 | 627 | 610 | 154.3 |
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 |  |