Observation information
- date-obs: 2019-01-04
- time-obs: 07:18:09.414500000
- date-end: 2019-01-04
- time-end: 09:31:11.411900000
- obs_id: A05_208T01_9000002614
- exposure: 4630.36235121
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_208T01_9000002614_17676cztM0_level2.evt
| modeM0/AS1A05_208T01_9000002614_17676cztM0_level2_quad_clean.evt
|
| Size (bytes) | 479,355,840 | 94,864,320 |
| Size | 457.1 MB
| 90.5 MB
|
| Events in quadrant A | 3,467,633 | 603,327 |
| Events in quadrant B | 3,445,313 | 614,461 |
| Events in quadrant C | 3,693,591 | 591,044 |
| Events in quadrant D | 3,439,161 | 580,399 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14564 | 2 |
| B | 0 | 14576 | 2 |
| C | 0 | 15141 | 2 |
| D | 0 | 14907 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6937 | 90 | 1.297391% |
| B | 6937 | 91 | 1.311806% |
| C | 6937 | 144 | 2.075825% |
| D | 6937 | 147 | 2.119072% |
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 | 7612 | 6937 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7612 | 6937 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7612 | 6938 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7612 | 6938 | 79 | 79 | 1.04% | 1.14% |  |
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 | 14 | 237 | 214704 | 1239.56 | 846 | 826 | 172.5 |
| A | 0 | 226 | 7352 | 37.82 | 846 | 826 | 172.5 |
| A | 12 | 194 | 6243 | 31.4 | 846 | 826 | 172.5 |
| B | 7 | 220 | 67212 | 410.14 | 842 | 819 | 161.9 |
| B | 0 | 230 | 23023 | 137.16 | 842 | 819 | 161.9 |
| B | 12 | 111 | 19075 | 112.77 | 842 | 819 | 161.9 |
| C | 3 | 233 | 381860 | 1997.03 | 816 | 822 | 190.8 |
| C | 14 | 238 | 124294 | 647.12 | 816 | 822 | 190.8 |
| C | 13 | 61 | 5755 | 25.85 | 816 | 822 | 190.8 |
| D | 7 | 238 | 194426 | 957.18 | 823 | 800 | 202.3 |
| D | 1 | 52 | 53676 | 261.39 | 823 | 800 | 202.3 |
| D | 10 | 70 | 35377 | 170.93 | 823 | 800 | 202.3 |
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 |  |