Observation information
- date-obs: 2020-09-14
- time-obs: 11:45:55.363100000
- date-end: 2020-09-14
- time-end: 13:55:31.360300000
- obs_id: A09_145T01_9000003866
- exposure: 3865.33482863
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003866_26841cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003866_26841cztM0_level2_quad_clean.evt
|
| Size (bytes) | 868,654,080 | 91,460,160 |
| Size | 828.4 MB
| 87.2 MB
|
| Events in quadrant A | 4,242,604 | 619,285 |
| Events in quadrant B | 7,676,987 | 473,722 |
| Events in quadrant C | 3,833,282 | 600,182 |
| Events in quadrant D | 10,035,636 | 540,881 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17289 | 0 |
| B | 0 | 27688 | 0 |
| C | 0 | 15969 | 0 |
| D | 0 | 35146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7681 | 197 | 2.564770% |
| B | 7682 | 1687 | 21.960427% |
| C | 7682 | 239 | 3.111169% |
| D | 7681 | 2004 | 26.090353% |
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 | 7776 | 7682 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7777 | 7682 | 1249 | 1249 | 16.06% | 16.26% |  |
| C | 7777 | 7683 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7776 | 7681 | 1605 | 1605 | 20.64% | 20.90% |  |
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 | 13 | 433388 | 2164.1 | 987 | 968 | 199.8 |
| A | 13 | 254 | 12064 | 55.53 | 987 | 968 | 199.8 |
| A | 3 | 137 | 9296 | 41.68 | 987 | 968 | 199.8 |
| B | 3 | 64 | 3856284 | 23374.05 | 854 | 836 | 164.9 |
| B | 0 | 189 | 374871 | 2267.63 | 854 | 836 | 164.9 |
| B | 7 | 205 | 67446 | 403.83 | 854 | 836 | 164.9 |
| C | 14 | 238 | 148117 | 659.14 | 942 | 951 | 223.3 |
| C | 15 | 208 | 6719 | 25.83 | 942 | 951 | 223.3 |
| C | 13 | 61 | 6434 | 24.56 | 942 | 951 | 223.3 |
| D | 7 | 80 | 2928123 | 13989.29 | 866 | 845 | 209.3 |
| D | 1 | 52 | 2712153 | 12957.18 | 866 | 845 | 209.3 |
| D | 12 | 227 | 910894 | 4349.07 | 866 | 845 | 209.3 |
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 |  |