Observation information
- date-obs: 2018-07-11
- time-obs: 22:49:52.288000000
- date-end: 2018-07-12
- time-end: 00:58:51.289400000
- obs_id: T02_060T01_9000002216
- exposure: 3905.8778891
- 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_15066cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15066cztM0_level2_quad_clean.evt
|
| Size (bytes) | 440,147,520 | 92,612,160 |
| Size | 419.8 MB
| 88.3 MB
|
| Events in quadrant A | 3,181,640 | 599,510 |
| Events in quadrant B | 3,300,685 | 620,657 |
| Events in quadrant C | 3,458,787 | 591,257 |
| Events in quadrant D | 2,967,602 | 560,521 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13258 | 3 |
| B | 0 | 13559 | 2 |
| C | 0 | 13990 | 2 |
| D | 0 | 13000 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6200 | 44 | 0.709677% |
| B | 6200 | 48 | 0.774194% |
| C | 6200 | 29 | 0.467742% |
| D | 6200 | 36 | 0.580645% |
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 | 7486 | 6202 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7486 | 6201 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7486 | 6202 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7486 | 6202 | 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 | 59966 | 374.62 | 792 | 780 | 158.0 |
| A | 1 | 178 | 27623 | 169.9 | 792 | 780 | 158.0 |
| A | 1 | 161 | 23710 | 145.13 | 792 | 780 | 158.0 |
| B | 3 | 64 | 171484 | 1127.48 | 797 | 779 | 151.4 |
| B | 12 | 111 | 17649 | 111.42 | 797 | 779 | 151.4 |
| B | 11 | 111 | 15493 | 97.18 | 797 | 779 | 151.4 |
| C | 3 | 233 | 462238 | 2593.83 | 768 | 774 | 177.9 |
| C | 13 | 61 | 5368 | 25.82 | 768 | 774 | 177.9 |
| C | 3 | 232 | 2937 | 12.16 | 768 | 774 | 177.9 |
| D | 13 | 249 | 75947 | 405.09 | 761 | 741 | 185.7 |
| D | 2 | 234 | 20288 | 105.29 | 761 | 741 | 185.7 |
| D | 13 | 104 | 10005 | 49.9 | 761 | 741 | 185.7 |
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 |  |