Observation information
- date-obs: 2018-02-01
- time-obs: 02:49:25.998100000
- date-end: 2018-02-01
- time-end: 05:10:18.997900000
- obs_id: A04_174T01_9000001876
- exposure: 4057.44963737
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12685cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12685cztM0_level2_quad_clean.evt
|
| Size (bytes) | 598,317,120 | 92,805,120 |
| Size | 570.6 MB
| 88.5 MB
|
| Events in quadrant A | 3,693,797 | 591,648 |
| Events in quadrant B | 6,346,863 | 518,330 |
| Events in quadrant C | 3,637,423 | 595,343 |
| Events in quadrant D | 3,917,600 | 566,985 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16128 | 3 |
| B | 0 | 24007 | 2 |
| C | 0 | 16050 | 2 |
| D | 0 | 17064 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7733 | 102 | 1.319022% |
| B | 7733 | 1039 | 13.435924% |
| C | 7733 | 48 | 0.620716% |
| D | 7733 | 75 | 0.969869% |
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 | 8454 | 7733 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8454 | 7734 | 730 | 730 | 8.63% | 9.44% |  |
| C | 8453 | 7732 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8453 | 7732 | 51 | 51 | 0.60% | 0.66% |  |
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 | 54522 | 278.58 | 941 | 921 | 192.4 |
| A | 8 | 15 | 10895 | 51.84 | 941 | 921 | 192.4 |
| A | 0 | 226 | 8294 | 38.32 | 941 | 921 | 192.4 |
| B | 4 | 239 | 2719649 | 16014.63 | 879 | 857 | 169.8 |
| B | 11 | 51 | 52425 | 303.75 | 879 | 857 | 169.8 |
| B | 0 | 85 | 35341 | 203.12 | 879 | 857 | 169.8 |
| C | 15 | 208 | 22038 | 98.38 | 920 | 930 | 214.6 |
| C | 8 | 128 | 12103 | 52.08 | 920 | 930 | 214.6 |
| C | 14 | 234 | 7542 | 30.82 | 920 | 930 | 214.6 |
| D | 10 | 199 | 203904 | 942.21 | 905 | 886 | 215.5 |
| D | 1 | 52 | 164241 | 758.13 | 905 | 886 | 215.5 |
| D | 13 | 104 | 45017 | 204.81 | 905 | 886 | 215.5 |
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 |  |