Observation information
- date-obs: 2018-07-11
- time-obs: 19:14:52.285500000
- date-end: 2018-07-11
- time-end: 21:31:27.287200000
- obs_id: T02_060T01_9000002216
- exposure: 4257.21102151
- 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_15063cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15063cztM0_level2_quad_clean.evt
|
| Size (bytes) | 457,980,480 | 92,160,000 |
| Size | 436.8 MB
| 87.9 MB
|
| Events in quadrant A | 3,432,730 | 588,332 |
| Events in quadrant B | 3,461,427 | 602,461 |
| Events in quadrant C | 3,388,564 | 585,729 |
| Events in quadrant D | 3,141,563 | 556,995 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14495 | 3 |
| B | 0 | 14461 | 2 |
| C | 0 | 14176 | 2 |
| D | 0 | 13913 | 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 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6556 | 64 | 0.976205% |
| B | 6556 | 81 | 1.235509% |
| C | 6556 | 40 | 0.610128% |
| D | 6556 | 51 | 0.777913% |
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 | 7627 | 6557 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7627 | 6557 | 14 | 14 | 0.18% | 0.21% |  |
| C | 7627 | 6558 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7627 | 6557 | 13 | 13 | 0.17% | 0.20% |  |
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 | 151986 | 932.54 | 806 | 791 | 162.1 |
| A | 1 | 178 | 65680 | 400.22 | 806 | 791 | 162.1 |
| A | 1 | 161 | 60464 | 368.05 | 806 | 791 | 162.1 |
| B | 3 | 64 | 265866 | 1717.55 | 808 | 789 | 154.3 |
| B | 12 | 111 | 18557 | 115.13 | 808 | 789 | 154.3 |
| B | 4 | 173 | 16876 | 104.23 | 808 | 789 | 154.3 |
| C | 3 | 233 | 315411 | 1722.36 | 788 | 793 | 182.7 |
| C | 13 | 61 | 5492 | 25.72 | 788 | 793 | 182.7 |
| C | 3 | 202 | 1760 | 5.29 | 788 | 793 | 182.7 |
| D | 13 | 249 | 117955 | 616.02 | 786 | 764 | 190.2 |
| D | 2 | 14 | 24813 | 126.41 | 786 | 764 | 190.2 |
| D | 2 | 234 | 21080 | 106.79 | 786 | 764 | 190.2 |
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 |  |