Observation information
- date-obs: 2017-08-08
- time-obs: 23:17:55.224100000
- date-end: 2017-08-09
- time-end: 01:40:06.224200000
- obs_id: A03_044T04_9000001448
- exposure: 452.109541416
- 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/AS1A03_044T04_9000001448_10078cztM0_level2.evt
| modeM0/AS1A03_044T04_9000001448_10078cztM0_level2_quad_clean.evt
|
| Size (bytes) | 38,030,400 | 8,665,920 |
| Size | 36.3 MB
| 8.3 MB
|
| Events in quadrant A | 276,396 | 53,935 |
| Events in quadrant B | 280,676 | 57,742 |
| Events in quadrant C | 264,527 | 54,248 |
| Events in quadrant D | 285,070 | 45,851 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15913 | 14644 |
| B | 0 | 16039 | 14768 |
| C | 0 | 15480 | 14232 |
| D | 0 | 18198 | 17013 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 6 |
| B | 0 | 8 | 4 |
| C | 0 | 9 | 7 |
| D | 0 | 9 | 9 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 138 |
| B | 0 | 150 | 135 |
| C | 0 | 153 | 145 |
| D | 0 | 155 | 143 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 617 | 3 | 0.486224% |
| B | 618 | 8 | 1.294498% |
| C | 619 | 0 | 0.000000% |
| D | 550 | 2 | 0.363636% |
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 | 7527 | 1094 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7536 | 1114 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7609 | 1103 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7507 | 980 | 0 | 0 | 0.00% | 0.00% |  |
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 | 8 | 9513 | 591.11 | 68 | 67 | 16.0 |
| A | 8 | 15 | 1432 | 85.42 | 68 | 67 | 16.0 |
| A | 13 | 253 | 1014 | 59.26 | 68 | 67 | 16.0 |
| B | 0 | 214 | 1592 | 94.1 | 70 | 68 | 16.2 |
| B | 12 | 111 | 1559 | 92.06 | 70 | 68 | 16.2 |
| B | 4 | 239 | 1538 | 90.77 | 70 | 68 | 16.2 |
| C | 13 | 61 | 526 | 25.59 | 67 | 67 | 17.9 |
| C | 14 | 67 | 516 | 25.03 | 67 | 67 | 17.9 |
| C | 8 | 222 | 402 | 18.68 | 67 | 67 | 17.9 |
| D | 8 | 195 | 32013 | 1888.56 | 58 | 56 | 16.9 |
| D | 2 | 152 | 11693 | 687.71 | 58 | 56 | 16.9 |
| D | 10 | 199 | 9164 | 538.26 | 58 | 56 | 16.9 |
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 |  |