Observation information
- date-obs: 2024-08-22
- time-obs: 09:10:32.926500000
- date-end: 2024-08-22
- time-end: 11:11:24.914200000
- obs_id: C09_009T01_9000006406
- exposure: 498.3542611
- 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_48137cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48137cztM0_level2_quad_clean.evt
|
| Size (bytes) | 408,078,720 | 85,904,640 |
| Size | 389.2 MB
| 81.9 MB
|
| Events in quadrant A | 6,770,494 | 737,402 |
| Events in quadrant B | 1,100,236 | 43,527 |
| Events in quadrant C | 3,284,130 | 713,887 |
| Events in quadrant D | 3,443,461 | 654,531 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25585 | 4 |
| B | 0 | 6833 | 1 |
| C | 0 | 14294 | 2 |
| D | 0 | 14655 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6431 | 173 | 2.690095% |
| B | 6433 | 6433 | 100.000000% |
| C | 6432 | 166 | 2.580846% |
| D | 6431 | 114 | 1.772664% |
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 | 7252 | 6433 | 14 | 14 | 0.19% | 0.22% |  |
| B | 7252 | 6416 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7253 | 6434 | 91 | 91 | 1.25% | 1.41% |  |
| D | 7253 | 6433 | 75 | 75 | 1.03% | 1.17% |  |
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 | 3832829 | 24856.96 | 732 | 716 | 154.2 |
| A | 0 | 31 | 71983 | 462.27 | 732 | 716 | 154.2 |
| A | 13 | 248 | 34631 | 219.99 | 732 | 716 | 154.2 |
| B | 2 | 177 | 889986 | 79160.2 | 45 | 44 | 11.2 |
| B | 0 | 200 | 17077 | 1515.08 | 45 | 44 | 11.2 |
| B | 4 | 21 | 10348 | 916.54 | 45 | 44 | 11.2 |
| C | 10 | 187 | 256819 | 1505.89 | 710 | 713 | 170.1 |
| C | 12 | 2 | 221469 | 1298.03 | 710 | 713 | 170.1 |
| C | 12 | 249 | 24764 | 141.42 | 710 | 713 | 170.1 |
| D | 12 | 2 | 364740 | 2021.03 | 715 | 693 | 180.1 |
| D | 6 | 239 | 101057 | 557.18 | 715 | 693 | 180.1 |
| D | 2 | 165 | 49072 | 268.58 | 715 | 693 | 180.1 |
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 |  |