Observation information
- date-obs: 2020-08-18
- time-obs: 06:50:18.419500000
- date-end: 2020-08-18
- time-end: 10:32:12.415000000
- obs_id: A09_108T02_9000003822
- exposure: 6367.756237
- sourceid: M31-II
- observer: bhargavi.sg
- ra_pnt: 9.965167
- dec_pnt: 40.35314
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_108T02_9000003822_26439cztM0_level2.evt
| modeM0/AS1A09_108T02_9000003822_26439cztM0_level2_quad_clean.evt
|
| Size (bytes) | 912,490,560 | 135,017,280 |
| Size | 870.2 MB
| 128.8 MB
|
| Events in quadrant A | 5,805,897 | 828,056 |
| Events in quadrant B | 5,673,690 | 847,690 |
| Events in quadrant C | 6,826,416 | 804,766 |
| Events in quadrant D | 8,522,224 | 783,287 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24797 | 0 |
| B | 0 | 24208 | 0 |
| C | 0 | 27683 | 0 |
| D | 0 | 33137 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 11919 | 131 | 1.099085% |
| B | 11920 | 98 | 0.822148% |
| C | 11920 | 392 | 3.288591% |
| D | 11920 | 689 | 5.780201% |
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 | 13314 | 11919 | 34 | 34 | 0.26% | 0.29% |  |
| B | 13315 | 11920 | 1 | 1 | 0.01% | 0.01% |  |
| C | 13315 | 11921 | 158 | 158 | 1.19% | 1.33% |  |
| D | 13315 | 11921 | 530 | 530 | 3.98% | 4.45% |  |
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 | 252428 | 872.38 | 1435 | 1407 | 287.7 |
| A | 13 | 254 | 17198 | 54.88 | 1435 | 1407 | 287.7 |
| A | 3 | 137 | 13822 | 43.14 | 1435 | 1407 | 287.7 |
| B | 12 | 111 | 34538 | 119.59 | 1430 | 1390 | 277.2 |
| B | 11 | 111 | 31154 | 107.38 | 1430 | 1390 | 277.2 |
| B | 14 | 111 | 27715 | 94.98 | 1430 | 1390 | 277.2 |
| C | 4 | 254 | 1055128 | 3329.99 | 1364 | 1371 | 316.4 |
| C | 14 | 238 | 216850 | 680.94 | 1364 | 1371 | 316.4 |
| C | 3 | 233 | 165696 | 519.28 | 1364 | 1371 | 316.4 |
| D | 1 | 52 | 1230220 | 3778.47 | 1361 | 1325 | 325.2 |
| D | 11 | 176 | 1034002 | 3175.16 | 1361 | 1325 | 325.2 |
| D | 7 | 80 | 882988 | 2710.84 | 1361 | 1325 | 325.2 |
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 |  |