Observation information
- date-obs: 2020-08-31
- time-obs: 22:18:02.863100000
- date-end: 2020-09-01
- time-end: 07:14:21.841900000
- obs_id: A09_145T01_9000003848
- exposure: 14545.7826765
- 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_26645cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26645cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,821,899,520 | 325,428,480 |
| Size | 1.7 GB
| 310.4 MB
|
| Events in quadrant A | 11,193,041 | 2,137,838 |
| Events in quadrant B | 12,897,770 | 2,139,711 |
| Events in quadrant C | 11,256,695 | 2,062,433 |
| Events in quadrant D | 18,317,718 | 1,974,221 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 47354 | 0 |
| B | 0 | 53186 | 0 |
| C | 0 | 47273 | 0 |
| D | 0 | 69806 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 22421 | 184 | 0.820659% |
| B | 22421 | 205 | 0.914321% |
| C | 22420 | 319 | 1.422837% |
| D | 22420 | 2117 | 9.442462% |
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 | 32180 | 22425 | 48 | 48 | 0.15% | 0.21% |  |
| B | 32180 | 22425 | 24 | 24 | 0.07% | 0.11% |  |
| C | 32179 | 22424 | 22 | 22 | 0.07% | 0.10% |  |
| D | 32179 | 22424 | 1549 | 1549 | 4.81% | 6.91% |  |
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 | 442869 | 791.34 | 2785 | 2740 | 556.2 |
| A | 13 | 254 | 36373 | 60.47 | 2785 | 2740 | 556.2 |
| A | 3 | 137 | 24991 | 40.01 | 2785 | 2740 | 556.2 |
| B | 0 | 189 | 1400260 | 2672.7 | 2763 | 2702 | 522.9 |
| B | 3 | 112 | 475722 | 904.61 | 2763 | 2702 | 522.9 |
| B | 10 | 245 | 84396 | 156.23 | 2763 | 2702 | 522.9 |
| C | 14 | 238 | 429714 | 685.44 | 2658 | 2685 | 623.0 |
| C | 3 | 233 | 185461 | 293.38 | 2658 | 2685 | 623.0 |
| C | 2 | 16 | 141722 | 223.17 | 2658 | 2685 | 623.0 |
| D | 1 | 52 | 4812407 | 7483.58 | 2587 | 2533 | 642.7 |
| D | 7 | 80 | 1759049 | 2732.93 | 2587 | 2533 | 642.7 |
| D | 12 | 233 | 1411643 | 2192.41 | 2587 | 2533 | 642.7 |
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 |  |