Observation information
- date-obs: 2020-09-04
- time-obs: 06:21:36.716300000
- date-end: 2020-09-04
- time-end: 08:20:53.711100000
- obs_id: A09_145T01_9000003848
- exposure: 3561.31112167
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003848_26690cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26690cztM0_level2_quad_clean.evt
|
| Size (bytes) | 625,855,680 | 93,337,920 |
| Size | 596.9 MB
| 89.0 MB
|
| Events in quadrant A | 3,141,421 | 640,518 |
| Events in quadrant B | 3,114,012 | 648,722 |
| Events in quadrant C | 3,397,068 | 605,081 |
| Events in quadrant D | 8,901,152 | 519,154 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12648 | 0 |
| B | 0 | 12604 | 0 |
| C | 0 | 13612 | 0 |
| D | 0 | 30453 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5907 | 36 | 0.609446% |
| B | 5908 | 53 | 0.897089% |
| C | 5908 | 134 | 2.268111% |
| D | 5907 | 2594 | 43.914000% |
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 | 7157 | 5908 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7158 | 5909 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7158 | 5909 | 46 | 46 | 0.64% | 0.78% |  |
| D | 7157 | 5907 | 2169 | 2169 | 30.31% | 36.72% |  |
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 | 0 | 13 | 53470 | 331.5 | 801 | 791 | 158.9 |
| A | 13 | 254 | 9549 | 55.11 | 801 | 791 | 158.9 |
| A | 0 | 226 | 6983 | 38.97 | 801 | 791 | 158.9 |
| B | 12 | 111 | 17031 | 109.32 | 789 | 773 | 148.7 |
| B | 11 | 111 | 15194 | 96.97 | 789 | 773 | 148.7 |
| B | 14 | 111 | 13317 | 84.35 | 789 | 773 | 148.7 |
| C | 3 | 233 | 237256 | 1344.38 | 753 | 761 | 175.9 |
| C | 14 | 238 | 122627 | 692.76 | 753 | 761 | 175.9 |
| C | 1 | 0 | 96966 | 546.89 | 753 | 761 | 175.9 |
| D | 7 | 80 | 5582535 | 35177.16 | 588 | 579 | 158.7 |
| D | 1 | 52 | 973170 | 6129.21 | 588 | 579 | 158.7 |
| D | 2 | 250 | 82984 | 519.31 | 588 | 579 | 158.7 |
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 |  |