Observation information
- date-obs: 2024-08-23
- time-obs: 17:47:22.761500000
- date-end: 2024-08-23
- time-end: 20:09:50.747600000
- obs_id: C09_009T01_9000006406
- exposure: 0.954658567905
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C09_009T01_9000006406_48158cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48158cztM0_level2_quad_clean.evt
|
| Size (bytes) | 439,888,320 | 89,458,560 |
| Size | 419.5 MB
| 85.3 MB
|
| Events in quadrant A | 7,834,336 | 757,880 |
| Events in quadrant B | 1,163,973 | 120 |
| Events in quadrant C | 3,274,435 | 782,341 |
| Events in quadrant D | 3,491,503 | 709,093 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28021 | 2 |
| B | 0 | 7127 | 2 |
| C | 0 | 14126 | 2 |
| D | 0 | 14747 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6584 | 562 | 8.535844% |
| B | 6584 | 6583 | 99.984812% |
| C | 6584 | 83 | 1.260632% |
| D | 6584 | 112 | 1.701094% |
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 | 7659 | 6586 | 119 | 119 | 1.55% | 1.81% |  |
| B | 7658 | 6568 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7659 | 6586 | 12 | 12 | 0.16% | 0.18% |  |
| D | 7659 | 6586 | 33 | 33 | 0.43% | 0.50% |  |
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 | 10 | 83 | 4625753 | 28035.96 | 784 | 767 | 165.0 |
| A | 15 | 174 | 71038 | 425.97 | 784 | 767 | 165.0 |
| A | 13 | 248 | 34279 | 203.14 | 784 | 767 | 165.0 |
| B | 2 | 177 | 907587 | 76208.02 | 48 | 47 | 11.9 |
| B | 4 | 171 | 14178 | 1186.61 | 48 | 47 | 11.9 |
| B | 4 | 21 | 12014 | 1004.89 | 48 | 47 | 11.9 |
| C | 12 | 2 | 121199 | 638.79 | 792 | 800 | 188.5 |
| C | 14 | 254 | 30704 | 158.66 | 792 | 800 | 188.5 |
| C | 0 | 207 | 23846 | 122.27 | 792 | 800 | 188.5 |
| D | 12 | 233 | 82953 | 411.3 | 790 | 767 | 199.8 |
| D | 12 | 2 | 80340 | 398.23 | 790 | 767 | 199.8 |
| D | 5 | 32 | 48940 | 241.08 | 790 | 767 | 199.8 |
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 |  |