Observation information
- date-obs: 2020-06-08
- time-obs: 10:50:37.230200000
- date-end: 2020-06-08
- time-end: 12:56:23.223800000
- obs_id: A09_057T04_9000003712
- exposure: 3065.7930467
- sourceid: NGC 7531
- observer: sreeja
- ra_pnt: 348.7021
- dec_pnt: -43.59995
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_057T04_9000003712_25390cztM0_level2.evt
| modeM0/AS1A09_057T04_9000003712_25390cztM0_level2_quad_clean.evt
|
| Size (bytes) | 772,712,640 | 77,296,320 |
| Size | 736.9 MB
| 73.7 MB
|
| Events in quadrant A | 5,685,994 | 503,775 |
| Events in quadrant B | 3,424,034 | 514,370 |
| Events in quadrant C | 3,287,694 | 478,483 |
| Events in quadrant D | 10,581,027 | 405,895 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21221 | 0 |
| B | 0 | 13640 | 0 |
| C | 0 | 13333 | 0 |
| D | 0 | 35840 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6266 | 487 | 7.772103% |
| B | 6267 | 88 | 1.404181% |
| C | 6267 | 112 | 1.787139% |
| D | 6267 | 2561 | 40.864848% |
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 | 7546 | 6267 | 309 | 309 | 4.09% | 4.93% |  |
| B | 7547 | 6268 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7547 | 6267 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7546 | 6266 | 2232 | 2232 | 29.58% | 35.62% |  |
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 | 6 | 16 | 2360884 | 13970.46 | 854 | 839 | 168.9 |
| A | 15 | 173 | 31999 | 184.45 | 854 | 839 | 168.9 |
| A | 13 | 254 | 8560 | 45.71 | 854 | 839 | 168.9 |
| B | 0 | 190 | 50807 | 320.67 | 844 | 826 | 155.9 |
| B | 0 | 229 | 24773 | 153.64 | 844 | 826 | 155.9 |
| B | 12 | 111 | 18667 | 114.46 | 844 | 826 | 155.9 |
| C | 14 | 238 | 132283 | 707.44 | 807 | 813 | 185.8 |
| C | 13 | 61 | 5497 | 25.2 | 807 | 813 | 185.8 |
| C | 7 | 247 | 4816 | 21.54 | 807 | 813 | 185.8 |
| D | 1 | 52 | 5906251 | 34297.77 | 725 | 705 | 172.2 |
| D | 7 | 238 | 1193244 | 6925.93 | 725 | 705 | 172.2 |
| D | 8 | 195 | 649970 | 3770.75 | 725 | 705 | 172.2 |
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 |  |