Observation information
- date-obs: 2018-07-11
- time-obs: 21:14:18.287300000
- date-end: 2018-07-11
- time-end: 23:15:47.288400000
- obs_id: T02_060T01_9000002216
- exposure: 3779.48442972
- 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_15064cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15064cztM0_level2_quad_clean.evt
|
| Size (bytes) | 442,025,280 | 85,135,680 |
| Size | 421.5 MB
| 81.2 MB
|
| Events in quadrant A | 3,101,791 | 546,709 |
| Events in quadrant B | 3,698,206 | 547,869 |
| Events in quadrant C | 3,328,539 | 542,189 |
| Events in quadrant D | 2,843,940 | 515,779 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13114 | 2 |
| B | 0 | 14876 | 1 |
| C | 0 | 13719 | 1 |
| D | 0 | 12692 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6094 | 43 | 0.705612% |
| B | 6094 | 318 | 5.218247% |
| C | 6094 | 29 | 0.475878% |
| D | 6094 | 42 | 0.689202% |
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 | 7290 | 6096 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7290 | 6095 | 154 | 154 | 2.11% | 2.53% |  |
| C | 7290 | 6096 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7290 | 6096 | 8 | 8 | 0.11% | 0.13% |  |
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 | 1 | 162 | 99551 | 657.94 | 749 | 735 | 150.2 |
| A | 1 | 178 | 45603 | 298.74 | 749 | 735 | 150.2 |
| A | 1 | 161 | 40197 | 262.75 | 749 | 735 | 150.2 |
| B | 3 | 64 | 789542 | 5643.53 | 738 | 722 | 139.8 |
| B | 12 | 111 | 16699 | 114.31 | 738 | 722 | 139.8 |
| B | 11 | 111 | 14623 | 99.45 | 738 | 722 | 139.8 |
| C | 3 | 233 | 482435 | 2860.39 | 729 | 735 | 168.4 |
| C | 13 | 61 | 5216 | 26.61 | 729 | 735 | 168.4 |
| C | 3 | 232 | 3121 | 14.17 | 729 | 735 | 168.4 |
| D | 13 | 249 | 99627 | 563.31 | 725 | 705 | 175.6 |
| D | 2 | 234 | 20475 | 112.58 | 725 | 705 | 175.6 |
| D | 13 | 104 | 8620 | 45.07 | 725 | 705 | 175.6 |
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 |  |