Observation information
- date-obs: 2017-08-09
- time-obs: 01:13:15.224000000
- date-end: 2017-08-09
- time-end: 03:25:24.222600000
- obs_id: A03_044T04_9000001448
- exposure: 1283.47354901
- 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_10079cztM0_level2.evt
| modeM0/AS1A03_044T04_9000001448_10079cztM0_level2_quad_clean.evt
|
| Size (bytes) | 82,808,640 | 22,904,640 |
| Size | 79.0 MB
| 21.8 MB
|
| Events in quadrant A | 576,449 | 146,719 |
| Events in quadrant B | 604,077 | 149,622 |
| Events in quadrant C | 570,155 | 147,070 |
| Events in quadrant D | 656,289 | 143,173 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14814 | 11999 |
| B | 0 | 15074 | 12210 |
| C | 0 | 14755 | 11923 |
| D | 0 | 16475 | 13540 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 3 |
| B | 0 | 3 | 3 |
| C | 0 | 4 | 4 |
| D | 0 | 5 | 5 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 106 |
| B | 0 | 139 | 113 |
| C | 0 | 139 | 107 |
| D | 0 | 152 | 124 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1406 | 1 | 0.071124% |
| B | 1426 | 1 | 0.070126% |
| C | 1417 | 1 | 0.070572% |
| D | 1411 | 2 | 0.141743% |
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 | 7579 | 1981 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7587 | 1970 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7620 | 1969 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7721 | 1939 | 2 | 2 | 0.03% | 0.10% |  |
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 | 4362 | 133.42 | 146 | 144 | 31.6 |
| A | 8 | 15 | 2401 | 71.39 | 146 | 144 | 31.6 |
| A | 13 | 251 | 2286 | 67.75 | 146 | 144 | 31.6 |
| B | 4 | 239 | 5855 | 179.36 | 152 | 147 | 31.8 |
| B | 0 | 219 | 3981 | 120.47 | 152 | 147 | 31.8 |
| B | 12 | 111 | 3240 | 97.19 | 152 | 147 | 31.8 |
| C | 13 | 61 | 1042 | 24.79 | 145 | 146 | 36.1 |
| C | 8 | 222 | 732 | 16.22 | 145 | 146 | 36.1 |
| C | 14 | 67 | 511 | 10.1 | 145 | 146 | 36.1 |
| D | 8 | 195 | 68583 | 1841.72 | 141 | 138 | 37.2 |
| D | 12 | 233 | 17082 | 455.93 | 141 | 138 | 37.2 |
| D | 2 | 152 | 12607 | 335.52 | 141 | 138 | 37.2 |
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 |  |