Observation information
- date-obs: 2018-01-20
- time-obs: 05:26:15.427900000
- date-end: 2018-01-20
- time-end: 07:27:24.433100000
- obs_id: T01_218T01_9000001852
- exposure: 4727.72460618
- 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_9000001852_12509cztM0_level2.evt
| modeM0/AS1T01_218T01_9000001852_12509cztM0_level2_quad_clean.evt
|
| Size (bytes) | 501,310,080 | 92,718,720 |
| Size | 478.1 MB
| 88.4 MB
|
| Events in quadrant A | 3,298,885 | 583,370 |
| Events in quadrant B | 3,898,433 | 598,499 |
| Events in quadrant C | 3,145,044 | 589,483 |
| Events in quadrant D | 4,364,297 | 548,581 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14423 | 2 |
| B | 0 | 16182 | 1 |
| C | 0 | 14337 | 1 |
| D | 0 | 17711 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6994 | 193 | 2.759508% |
| B | 6994 | 279 | 3.989134% |
| C | 6994 | 107 | 1.529883% |
| D | 6994 | 347 | 4.961395% |
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 | 7270 | 6996 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7270 | 6996 | 61 | 61 | 0.84% | 0.87% |  |
| C | 7270 | 6996 | 3 | 3 | 0.04% | 0.04% |  |
| D | 7270 | 6996 | 167 | 167 | 2.30% | 2.39% |  |
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 | 12 | 189 | 45371 | 263.1 | 829 | 809 | 169.4 |
| A | 1 | 162 | 25860 | 147.91 | 829 | 809 | 169.4 |
| A | 1 | 178 | 14033 | 78.08 | 829 | 809 | 169.4 |
| B | 4 | 239 | 515298 | 3237.03 | 826 | 804 | 158.9 |
| B | 0 | 214 | 40800 | 251.64 | 826 | 804 | 158.9 |
| B | 0 | 228 | 32656 | 200.4 | 826 | 804 | 158.9 |
| C | 14 | 234 | 20362 | 105.22 | 800 | 802 | 185.9 |
| C | 13 | 61 | 5786 | 26.81 | 800 | 802 | 185.9 |
| C | 15 | 208 | 3421 | 14.09 | 800 | 802 | 185.9 |
| D | 1 | 52 | 1155412 | 6075.43 | 785 | 759 | 190.1 |
| D | 10 | 157 | 56418 | 292.86 | 785 | 759 | 190.1 |
| D | 8 | 195 | 40830 | 210.84 | 785 | 759 | 190.1 |
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 |  |