Observation information
- date-obs: 2020-08-30
- time-obs: 04:14:36.949900000
- date-end: 2020-08-30
- time-end: 06:26:16.943400000
- obs_id: A09_145T01_9000003848
- exposure: 4594.59539479
- 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_26614cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26614cztM0_level2_quad_clean.evt
|
| Size (bytes) | 574,441,920 | 104,425,920 |
| Size | 547.8 MB
| 99.6 MB
|
| Events in quadrant A | 3,554,559 | 691,511 |
| Events in quadrant B | 3,722,683 | 700,492 |
| Events in quadrant C | 3,651,465 | 666,377 |
| Events in quadrant D | 6,004,482 | 626,989 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14796 | 0 |
| B | 0 | 15013 | 0 |
| C | 0 | 15035 | 0 |
| D | 0 | 22586 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6846 | 28 | 0.408998% |
| B | 6847 | 39 | 0.569593% |
| C | 6840 | 85 | 1.242690% |
| D | 6837 | 613 | 8.965921% |
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 | 7800 | 6851 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7800 | 6850 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7799 | 6850 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7799 | 6849 | 564 | 564 | 7.23% | 8.23% |  |
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 | 245381 | 1421.09 | 855 | 841 | 172.1 |
| A | 5 | 168 | 12946 | 70.35 | 855 | 841 | 172.1 |
| A | 13 | 254 | 11377 | 61.23 | 855 | 841 | 172.1 |
| B | 0 | 189 | 285085 | 1746.57 | 852 | 835 | 162.7 |
| B | 5 | 172 | 55225 | 334.2 | 852 | 835 | 162.7 |
| B | 12 | 111 | 19081 | 112.11 | 852 | 835 | 162.7 |
| C | 3 | 233 | 337248 | 1759.13 | 812 | 819 | 191.2 |
| C | 14 | 238 | 130018 | 675.56 | 812 | 819 | 191.2 |
| C | 15 | 208 | 18412 | 91.99 | 812 | 819 | 191.2 |
| D | 1 | 52 | 1506937 | 7887.9 | 779 | 760 | 190.9 |
| D | 7 | 80 | 1226318 | 6418.29 | 779 | 760 | 190.9 |
| D | 2 | 250 | 314810 | 1644.69 | 779 | 760 | 190.9 |
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 |  |