Observation information
- date-obs: 2017-01-21
- time-obs: 00:35:55.878600000
- date-end: 2017-01-21
- time-end: 02:38:02.091900000
- obs_id: A02_090T01_9000000970
- exposure: 3363.97314273
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000970_07119cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07119cztM0_level2_quad_clean.evt
|
| Size (bytes) | 426,199,680 | 80,467,200 |
| Size | 406.5 MB
| 76.7 MB
|
| Events in quadrant A | 2,919,965 | 509,766 |
| Events in quadrant B | 3,125,026 | 520,899 |
| Events in quadrant C | 2,947,195 | 507,374 |
| Events in quadrant D | 3,503,034 | 474,857 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12634 | 2 |
| B | 0 | 13226 | 1 |
| C | 0 | 12730 | 1 |
| D | 0 | 14131 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6072 | 10 | 0.164690% |
| B | 6072 | 16 | 0.263505% |
| C | 6072 | 27 | 0.444664% |
| D | 6072 | 35 | 0.576416% |
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 | 7327 | 6073 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7327 | 6073 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7327 | 6073 | 20 | 20 | 0.27% | 0.33% |  |
| D | 7327 | 6073 | 19 | 19 | 0.26% | 0.31% |  |
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 | 14 | 238 | 64972 | 426.39 | 737 | 724 | 150.7 |
| A | 8 | 15 | 16562 | 105.11 | 737 | 724 | 150.7 |
| A | 0 | 226 | 6967 | 41.43 | 737 | 724 | 150.7 |
| B | 3 | 220 | 67056 | 469.37 | 750 | 735 | 141.3 |
| B | 0 | 214 | 60895 | 425.77 | 750 | 735 | 141.3 |
| B | 0 | 219 | 52958 | 369.6 | 750 | 735 | 141.3 |
| C | 4 | 254 | 126056 | 747.13 | 721 | 728 | 167.7 |
| C | 10 | 22 | 8351 | 45.44 | 721 | 728 | 167.7 |
| C | 13 | 61 | 5645 | 29.31 | 721 | 728 | 167.7 |
| D | 8 | 195 | 392969 | 2237.42 | 710 | 688 | 175.3 |
| D | 2 | 216 | 353082 | 2009.92 | 710 | 688 | 175.3 |
| D | 2 | 14 | 34903 | 195.15 | 710 | 688 | 175.3 |
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 |  |