Observation information
- date-obs: 2020-09-25
- time-obs: 21:14:47.142700000
- date-end: 2020-09-25
- time-end: 23:17:06.139400000
- obs_id: A09_145T01_9000003900
- exposure: 4753.55245407
- 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_9000003900_27010cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003900_27010cztM0_level2_quad_clean.evt
|
| Size (bytes) | 551,203,200 | 119,131,200 |
| Size | 525.7 MB
| 113.6 MB
|
| Events in quadrant A | 5,820,720 | 765,010 |
| Events in quadrant B | 3,686,881 | 846,028 |
| Events in quadrant C | 3,310,837 | 808,744 |
| Events in quadrant D | 3,470,983 | 771,612 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21432 | 0 |
| B | 0 | 14922 | 0 |
| C | 0 | 13585 | 0 |
| D | 0 | 14186 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5969 | 737 | 12.347127% |
| B | 5969 | 117 | 1.960127% |
| C | 5970 | 83 | 1.390285% |
| D | 5970 | 68 | 1.139028% |
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 | 7339 | 5970 | 596 | 596 | 8.12% | 9.98% |  |
| B | 7339 | 5969 | 35 | 35 | 0.48% | 0.59% |  |
| C | 7340 | 5971 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7340 | 5971 | 46 | 46 | 0.63% | 0.77% |  |
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 | 14 | 235 | 2309035 | 14577.84 | 794 | 782 | 158.3 |
| A | 6 | 16 | 436084 | 2749.16 | 794 | 782 | 158.3 |
| A | 8 | 192 | 13627 | 81.12 | 794 | 782 | 158.3 |
| B | 0 | 189 | 386370 | 2473.3 | 833 | 816 | 155.9 |
| B | 0 | 219 | 30369 | 189.58 | 833 | 816 | 155.9 |
| B | 3 | 64 | 20981 | 129.36 | 833 | 816 | 155.9 |
| C | 14 | 238 | 132082 | 694.65 | 810 | 822 | 189.0 |
| C | 15 | 208 | 17531 | 88.43 | 810 | 822 | 189.0 |
| C | 13 | 61 | 5548 | 25.01 | 810 | 822 | 189.0 |
| D | 11 | 176 | 157889 | 831.67 | 799 | 784 | 188.9 |
| D | 2 | 250 | 142470 | 750.04 | 799 | 784 | 188.9 |
| D | 12 | 233 | 80494 | 421.96 | 799 | 784 | 188.9 |
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 |  |