Observation information
- date-obs: 2017-02-21
- time-obs: 07:09:56.407100000
- date-end: 2017-02-21
- time-end: 09:26:31.411400000
- obs_id: A02_024T01_9000001044
- exposure: 3150.80433311
- sourceid: NGC 4388
- observer: labani
- ra_pnt: 186.4448
- dec_pnt: 12.66209
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_024T01_9000001044_07582cztM0_level2.evt
| modeM0/AS1A02_024T01_9000001044_07582cztM0_level2_quad_clean.evt
|
| Size (bytes) | 476,907,840 | 73,998,720 |
| Size | 454.8 MB
| 70.6 MB
|
| Events in quadrant A | 3,496,965 | 448,554 |
| Events in quadrant B | 3,363,935 | 457,431 |
| Events in quadrant C | 3,294,525 | 448,633 |
| Events in quadrant D | 3,844,842 | 431,187 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14451 | 3 |
| B | 0 | 13956 | 2 |
| C | 0 | 13879 | 2 |
| D | 0 | 15584 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6523 | 117 | 1.793653% |
| B | 6523 | 114 | 1.747662% |
| C | 6523 | 88 | 1.349073% |
| D | 6523 | 195 | 2.989422% |
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 | 7718 | 6523 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7718 | 6523 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7718 | 6523 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7718 | 6523 | 63 | 63 | 0.82% | 0.97% |  |
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 | 15 | 239 | 185994 | 1074.67 | 851 | 836 | 172.3 |
| A | 3 | 1 | 22712 | 126.97 | 851 | 836 | 172.3 |
| A | 0 | 128 | 14828 | 81.21 | 851 | 836 | 172.3 |
| B | 0 | 214 | 53173 | 321.37 | 849 | 828 | 162.9 |
| B | 12 | 111 | 16302 | 95.0 | 849 | 828 | 162.9 |
| B | 0 | 219 | 15668 | 91.11 | 849 | 828 | 162.9 |
| C | 1 | 16 | 48398 | 250.63 | 823 | 831 | 189.8 |
| C | 9 | 68 | 30468 | 156.16 | 823 | 831 | 189.8 |
| C | 8 | 229 | 7783 | 36.63 | 823 | 831 | 189.8 |
| D | 2 | 152 | 330029 | 1620.56 | 828 | 803 | 203.2 |
| D | 5 | 233 | 155435 | 761.15 | 828 | 803 | 203.2 |
| D | 2 | 14 | 146752 | 718.41 | 828 | 803 | 203.2 |
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 |  |