Observation information
- date-obs: 2018-07-11
- time-obs: 01:58:12.270100000
- date-end: 2018-07-11
- time-end: 04:03:11.270800000
- obs_id: T02_060T01_9000002216
- exposure: 3482.40367109
- 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_15053cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15053cztM0_level2_quad_clean.evt
|
| Size (bytes) | 518,448,960 | 85,530,240 |
| Size | 494.4 MB
| 81.6 MB
|
| Events in quadrant A | 3,359,523 | 556,797 |
| Events in quadrant B | 5,213,740 | 548,985 |
| Events in quadrant C | 3,683,700 | 543,550 |
| Events in quadrant D | 3,033,045 | 517,102 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13713 | 3 |
| B | 0 | 19356 | 2 |
| C | 0 | 15056 | 2 |
| D | 0 | 13006 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6070 | 29 | 0.477759% |
| B | 6070 | 677 | 11.153213% |
| C | 6070 | 17 | 0.280066% |
| D | 6070 | 13 | 0.214168% |
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 | 7446 | 6072 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7446 | 6072 | 548 | 548 | 7.36% | 9.03% |  |
| C | 7446 | 6072 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7446 | 6072 | 9 | 9 | 0.12% | 0.15% |  |
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 | 125621 | 783.47 | 796 | 783 | 159.3 |
| A | 1 | 178 | 50369 | 311.2 | 796 | 783 | 159.3 |
| A | 1 | 161 | 44404 | 273.76 | 796 | 783 | 159.3 |
| B | 10 | 16 | 1353983 | 9587.53 | 752 | 737 | 141.1 |
| B | 3 | 64 | 890318 | 6302.54 | 752 | 737 | 141.1 |
| B | 12 | 111 | 16467 | 111.44 | 752 | 737 | 141.1 |
| C | 3 | 233 | 697408 | 3974.37 | 762 | 770 | 175.3 |
| C | 7 | 247 | 8748 | 45.52 | 762 | 770 | 175.3 |
| C | 13 | 61 | 5406 | 26.45 | 762 | 770 | 175.3 |
| D | 7 | 223 | 114963 | 626.63 | 755 | 734 | 182.3 |
| D | 13 | 249 | 39745 | 214.0 | 755 | 734 | 182.3 |
| D | 2 | 234 | 18710 | 98.61 | 755 | 734 | 182.3 |
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 |  |