Observation information
- date-obs: 2018-03-15
- time-obs: 13:44:55.810300000
- date-end: 2018-03-15
- time-end: 18:00:26.815600000
- obs_id: T02_014T01_9000001980
- exposure: 2567.43569072
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_014T01_9000001980cztM0_level2.fits
| modeM0/AS1T02_014T01_9000001980cztM0_level2_quad_clean.evt
|
| Size (bytes) | 122,546,880 | 67,118,400 |
| Size | 116.9 MB
| 64.0 MB
|
| Events in quadrant A | 762,922 | 317,809 |
| Events in quadrant B | 738,742 | 317,373 |
| Events in quadrant C | 742,016 | 301,862 |
| Events in quadrant D | 649,892 | 276,106 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 242 | 0 |
| B | 0 | 242 | 0 |
| C | 0 | 242 | 0 |
| D | 0 | 242 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27232 | 0 |
| B | 0 | 26599 | 0 |
| C | 0 | 25637 | 0 |
| D | 0 | 27173 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35 | 0 |
| B | 0 | 35 | 0 |
| C | 0 | 35 | 0 |
| D | 0 | 35 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11824 | 106 | 0.896482% |
| B | 11824 | 124 | 1.048714% |
| C | 11824 | 103 | 0.871110% |
| D | 11824 | 104 | 0.879567% |
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 | 14373 | 11823 | 0 | 0 | 0.00% | 0.00% |  |
| B | 14373 | 11823 | 0 | 0 | 0.00% | 0.00% |  |
| C | 14373 | 11819 | 0 | 0 | 0.00% | 0.00% |  |
| D | 14373 | 11823 | 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 | 724 | 10.53 | 198 | 187 | 51.0 |
| A | 9 | 19 | 616 | 8.41 | 198 | 187 | 51.0 |
| A | 7 | 110 | 585 | 7.8 | 198 | 187 | 51.0 |
| B | 2 | 9 | 627 | 10.94 | 195 | 187 | 40.2 |
| B | 3 | 17 | 531 | 8.56 | 195 | 187 | 40.2 |
| B | 5 | 128 | 491 | 7.56 | 195 | 187 | 40.2 |
| C | 1 | 80 | 583 | 7.63 | 195 | 183 | 52.4 |
| C | 1 | 81 | 574 | 7.46 | 195 | 183 | 52.4 |
| C | 12 | 241 | 564 | 7.27 | 195 | 183 | 52.4 |
| D | 6 | 231 | 507 | 6.57 | 185 | 169 | 51.4 |
| D | 3 | 14 | 459 | 5.64 | 185 | 169 | 51.4 |
| D | 6 | 38 | 456 | 5.58 | 185 | 169 | 51.4 |
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 |  |