Observation information
- date-obs: 2019-08-20
- time-obs: 06:15:48.711700000
- date-end: 2019-08-20
- time-end: 08:29:13.708300000
- obs_id: A05_025T04_9000003110
- exposure: 5720.78698117
- sourceid: NGC 1851
- observer: pandey
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_025T04_9000003110_21050cztM0_level2.evt
| modeM0/AS1A05_025T04_9000003110_21050cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,243,520 | 113,713,920 |
| Size | 482.8 MB
| 108.4 MB
|
| Events in quadrant A | 3,581,641 | 734,417 |
| Events in quadrant B | 3,768,174 | 752,014 |
| Events in quadrant C | 3,642,463 | 718,109 |
| Events in quadrant D | 3,812,096 | 699,680 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15909 | 2 |
| B | 0 | 16263 | 2 |
| C | 0 | 15939 | 2 |
| D | 0 | 16479 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7760 | 159 | 2.048969% |
| B | 7761 | 163 | 2.100245% |
| C | 7761 | 192 | 2.473908% |
| D | 7760 | 155 | 1.997423% |
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 | 8005 | 7761 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8006 | 7762 | 9 | 9 | 0.11% | 0.12% |  |
| C | 8006 | 7762 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8005 | 7761 | 12 | 12 | 0.15% | 0.15% |  |
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 | 13 | 254 | 10970 | 53.78 | 927 | 903 | 187.2 |
| A | 0 | 226 | 7894 | 37.35 | 927 | 903 | 187.2 |
| A | 13 | 252 | 7889 | 37.32 | 927 | 903 | 187.2 |
| B | 7 | 220 | 50121 | 279.7 | 925 | 901 | 176.0 |
| B | 12 | 111 | 21430 | 116.66 | 925 | 901 | 176.0 |
| B | 0 | 230 | 19259 | 104.32 | 925 | 901 | 176.0 |
| C | 14 | 238 | 140823 | 664.59 | 898 | 900 | 210.5 |
| C | 13 | 61 | 6307 | 25.68 | 898 | 900 | 210.5 |
| C | 9 | 209 | 2038 | 5.41 | 898 | 900 | 210.5 |
| D | 1 | 52 | 257745 | 1164.67 | 912 | 885 | 220.5 |
| D | 13 | 172 | 62397 | 278.91 | 912 | 885 | 220.5 |
| D | 2 | 234 | 29882 | 131.48 | 912 | 885 | 220.5 |
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 |  |