Observation information
- date-obs: 2018-01-19
- time-obs: 23:16:46.413500000
- date-end: 2018-01-20
- time-end: 23:01:50.462400000
- obs_id: T01_218T01_9000001852
- exposure: 39711.5672388
- sourceid: Mrk 421
- observer: subirbhattacharyya
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_218T01_9000001852cztM0_level2.fits
| modeM0/AS1T01_218T01_9000001852cztM0_level2_quad_clean.evt
|
| Size (bytes) | 694,788,480 | 678,801,600 |
| Size | 662.6 MB
| 647.4 MB
|
| Events in quadrant A | 4,192,502 | 4,038,230 |
| Events in quadrant B | 4,080,440 | 4,054,695 |
| Events in quadrant C | 4,172,536 | 3,883,900 |
| Events in quadrant D | 3,546,776 | 3,532,646 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 157884 | 0 |
| B | 0 | 166326 | 0 |
| C | 0 | 151858 | 0 |
| D | 0 | 181387 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1502 | 0 |
| B | 0 | 1502 | 0 |
| C | 0 | 1502 | 0 |
| D | 0 | 1502 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 117 | 0 |
| B | 0 | 117 | 0 |
| C | 0 | 117 | 0 |
| D | 0 | 117 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 73610 | 1091 | 1.482136% |
| B | 73610 | 1978 | 2.687135% |
| C | 73610 | 706 | 0.959109% |
| D | 73610 | 2237 | 3.038989% |
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 | 85505 | 73608 | 0 | 0 | 0.00% | 0.00% |  |
| B | 85505 | 73608 | 0 | 0 | 0.00% | 0.00% |  |
| C | 85505 | 73606 | 0 | 0 | 0.00% | 0.00% |  |
| D | 85505 | 73599 | 0 | 0 | 0.00% | 0.00% |  |
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 | 29 | 4023 | 10.82 | 1092 | 1019 | 277.5 |
| A | 7 | 110 | 3361 | 8.44 | 1092 | 1019 | 277.5 |
| A | 0 | 30 | 3141 | 7.65 | 1092 | 1019 | 277.5 |
| B | 2 | 9 | 3465 | 11.4 | 1075 | 1023 | 214.1 |
| B | 12 | 226 | 2750 | 8.06 | 1075 | 1023 | 214.1 |
| B | 3 | 17 | 2731 | 7.98 | 1075 | 1023 | 214.1 |
| C | 1 | 81 | 3103 | 7.34 | 1101 | 1022 | 283.5 |
| C | 1 | 80 | 3067 | 7.21 | 1101 | 1022 | 283.5 |
| C | 12 | 241 | 3002 | 6.98 | 1101 | 1022 | 283.5 |
| D | 7 | 5 | 2561 | 6.07 | 1013 | 918 | 270.8 |
| D | 7 | 3 | 2550 | 6.03 | 1013 | 918 | 270.8 |
| D | 6 | 231 | 2504 | 5.86 | 1013 | 918 | 270.8 |
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 |  |