Observation information
- date-obs: 2018-07-12
- time-obs: 07:19:04.294700000
- date-end: 2018-07-12
- time-end: 09:41:10.295700000
- obs_id: T02_060T01_9000002216
- exposure: 3436.05982062
- sourceid: Maxi J1820+070
- observer: aarthy
- ra_pnt: 275.091
- dec_pnt: 7.185631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_060T01_9000002216_15071cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15071cztM0_level2_quad_clean.evt
|
| Size (bytes) | 600,914,880 | 75,680,640 |
| Size | 573.1 MB
| 72.2 MB
|
| Events in quadrant A | 3,473,564 | 458,868 |
| Events in quadrant B | 3,533,399 | 467,590 |
| Events in quadrant C | 7,265,663 | 433,922 |
| Events in quadrant D | 3,439,233 | 430,496 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14937 | 3 |
| B | 0 | 14941 | 2 |
| C | 0 | 26876 | 2 |
| D | 0 | 15352 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7196 | 134 | 1.862146% |
| B | 7196 | 149 | 2.070595% |
| C | 7196 | 432 | 6.003335% |
| D | 7196 | 129 | 1.792663% |
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 | 8527 | 7197 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8527 | 7197 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8527 | 7198 | 93 | 93 | 1.09% | 1.29% |  |
| D | 8527 | 7199 | 34 | 34 | 0.40% | 0.47% |  |
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 | 12 | 189 | 36672 | 198.29 | 891 | 872 | 180.5 |
| A | 11 | 29 | 10050 | 50.84 | 891 | 872 | 180.5 |
| A | 0 | 226 | 7681 | 37.71 | 891 | 872 | 180.5 |
| B | 3 | 64 | 53097 | 302.81 | 886 | 865 | 172.5 |
| B | 12 | 111 | 21927 | 122.11 | 886 | 865 | 172.5 |
| B | 11 | 111 | 18851 | 104.27 | 886 | 865 | 172.5 |
| C | 3 | 233 | 3955429 | 20050.68 | 842 | 848 | 197.2 |
| C | 3 | 232 | 12429 | 58.72 | 842 | 848 | 197.2 |
| C | 3 | 234 | 12002 | 56.55 | 842 | 848 | 197.2 |
| D | 9 | 1 | 83735 | 391.52 | 857 | 830 | 211.8 |
| D | 13 | 249 | 53720 | 249.77 | 857 | 830 | 211.8 |
| D | 13 | 104 | 37910 | 175.11 | 857 | 830 | 211.8 |
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 |  |