Observation information
- date-obs: 2020-07-22
- time-obs: 15:19:38.202600000
- date-end: 2020-07-22
- time-end: 16:15:18.199700000
- obs_id: A09_033T02_9000003762
- exposure: 1243.0595215
- sourceid: NGC262
- observer: Rahnapt
- ra_pnt: 12.19642
- dec_pnt: 31.95697
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_033T02_9000003762_26044cztM0_level2.evt
| modeM0/AS1A09_033T02_9000003762_26044cztM0_level2_quad_clean.evt
|
| Size (bytes) | 235,771,200 | 28,019,520 |
| Size | 224.8 MB
| 26.7 MB
|
| Events in quadrant A | 1,475,400 | 163,067 |
| Events in quadrant B | 1,661,510 | 162,948 |
| Events in quadrant C | 1,485,247 | 154,070 |
| Events in quadrant D | 2,310,196 | 151,438 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6224 | 0 |
| B | 0 | 6799 | 0 |
| C | 0 | 6200 | 0 |
| D | 0 | 8829 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3030 | 35 | 1.155116% |
| B | 3030 | 97 | 3.201320% |
| C | 3030 | 51 | 1.683168% |
| D | 3030 | 186 | 6.138614% |
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 | 3045 | 3031 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3045 | 3031 | 38 | 38 | 1.25% | 1.25% |  |
| C | 3045 | 3031 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3045 | 3031 | 131 | 131 | 4.30% | 4.32% |  |
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 | 5 | 244 | 5182 | 61.98 | 381 | 374 | 77.6 |
| A | 13 | 254 | 4062 | 47.54 | 381 | 374 | 77.6 |
| A | 3 | 137 | 3628 | 41.95 | 381 | 374 | 77.6 |
| B | 10 | 245 | 170542 | 2355.59 | 372 | 363 | 72.2 |
| B | 0 | 190 | 24253 | 330.68 | 372 | 363 | 72.2 |
| B | 0 | 229 | 10372 | 138.54 | 372 | 363 | 72.2 |
| C | 14 | 238 | 58729 | 681.18 | 362 | 364 | 85.7 |
| C | 3 | 233 | 8357 | 93.29 | 362 | 364 | 85.7 |
| C | 3 | 248 | 4568 | 49.07 | 362 | 364 | 85.7 |
| D | 1 | 52 | 925475 | 9406.2 | 362 | 354 | 98.4 |
| D | 2 | 234 | 11826 | 116.64 | 362 | 354 | 98.4 |
| D | 14 | 226 | 3518 | 32.17 | 362 | 354 | 98.4 |
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 |  |