Observation information
- date-obs: 2020-09-09
- time-obs: 11:35:15.531500000
- date-end: 2020-09-09
- time-end: 13:45:12.528700000
- obs_id: A09_145T01_9000003854
- exposure: 4898.82569295
- 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_9000003854_26767cztM0_level2.fits
| modeM0/AS1A09_145T01_9000003854_26767cztM0_level2_quad_clean.evt
|
| Size (bytes) | 643,982,400 | 129,352,320 |
| Size | 614.1 MB
| 123.4 MB
|
| Events in quadrant A | 4,002,389 | 964,723 |
| Events in quadrant B | 4,558,456 | 937,253 |
| Events in quadrant C | 3,693,815 | 922,286 |
| Events in quadrant D | 11,025,408 | 591,945 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16045 | 1 |
| B | 0 | 17682 | 1 |
| C | 0 | 15026 | 1 |
| D | 0 | 37717 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7187 | 143 | 1.989704% |
| B | 7188 | 465 | 6.469115% |
| C | 7188 | 145 | 2.017251% |
| D | 7188 | 2707 | 37.659989% |
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 | 7797 | 7188 | 30 | 30 | 0.38% | 0.42% |  |
| B | 7798 | 7189 | 311 | 311 | 3.99% | 4.33% |  |
| C | 7798 | 7189 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7798 | 7189 | 2060 | 2060 | 26.42% | 28.65% |  |
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 | 380286 | 2019.6 | 937 | 919 | 187.8 |
| A | 13 | 254 | 11697 | 57.38 | 937 | 919 | 187.8 |
| A | 3 | 137 | 8509 | 40.4 | 937 | 919 | 187.8 |
| B | 0 | 189 | 993010 | 5704.86 | 902 | 881 | 173.9 |
| B | 12 | 111 | 20632 | 113.57 | 902 | 881 | 173.9 |
| B | 3 | 112 | 19430 | 106.66 | 902 | 881 | 173.9 |
| C | 14 | 238 | 143228 | 679.4 | 892 | 899 | 209.5 |
| C | 2 | 16 | 57995 | 272.55 | 892 | 899 | 209.5 |
| C | 15 | 208 | 10933 | 47.9 | 892 | 899 | 209.5 |
| D | 7 | 80 | 6666447 | 36269.83 | 764 | 747 | 183.8 |
| D | 1 | 52 | 865979 | 4707.96 | 764 | 747 | 183.8 |
| D | 15 | 36 | 178515 | 967.28 | 764 | 747 | 183.8 |
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 |  |