Observation information
- date-obs: 2019-01-04
- time-obs: 10:50:41.410200000
- date-end: 2019-01-04
- time-end: 13:02:19.407100000
- obs_id: A05_208T01_9000002614
- exposure: 4416.53149083
- 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_17678cztM0_level2.evt
| modeM0/AS1A05_208T01_9000002614_17678cztM0_level2_quad_clean.evt
|
| Size (bytes) | 530,225,280 | 91,776,960 |
| Size | 505.7 MB
| 87.5 MB
|
| Events in quadrant A | 3,691,872 | 564,664 |
| Events in quadrant B | 3,925,581 | 576,150 |
| Events in quadrant C | 4,242,747 | 550,696 |
| Events in quadrant D | 3,674,490 | 551,622 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16098 | 2 |
| B | 0 | 16469 | 2 |
| C | 0 | 17419 | 2 |
| D | 0 | 16297 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7703 | 243 | 3.154615% |
| B | 7703 | 267 | 3.466182% |
| C | 7704 | 314 | 4.075805% |
| D | 7704 | 203 | 2.634995% |
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 | 7898 | 7704 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7898 | 7705 | 5 | 5 | 0.06% | 0.06% |  |
| C | 7899 | 7705 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7899 | 7705 | 6 | 6 | 0.08% | 0.08% |  |
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 | 15477 | 74.15 | 956 | 932 | 196.2 |
| A | 0 | 226 | 8352 | 37.83 | 956 | 932 | 196.2 |
| A | 3 | 137 | 7293 | 32.43 | 956 | 932 | 196.2 |
| B | 7 | 220 | 65270 | 343.49 | 952 | 926 | 187.3 |
| B | 10 | 245 | 49819 | 261.01 | 952 | 926 | 187.3 |
| B | 0 | 189 | 39235 | 204.51 | 952 | 926 | 187.3 |
| C | 3 | 233 | 506997 | 2325.3 | 916 | 921 | 217.6 |
| C | 14 | 238 | 138227 | 630.89 | 916 | 921 | 217.6 |
| C | 5 | 218 | 12927 | 55.16 | 916 | 921 | 217.6 |
| D | 2 | 234 | 38475 | 160.59 | 945 | 917 | 233.9 |
| D | 10 | 70 | 20315 | 82.94 | 945 | 917 | 233.9 |
| D | 7 | 96 | 15036 | 60.37 | 945 | 917 | 233.9 |
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 |  |