Observation information
- date-obs: 2020-01-06
- time-obs: 19:34:44.435900000
- date-end: 2020-01-06
- time-end: 21:42:41.435000000
- obs_id: A08_008T01_9000003414
- exposure: 5966.11933023
- sourceid: LMC X-1
- observer: vivek
- ra_pnt: 84.91179
- dec_pnt: -69.7432
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A08_008T01_9000003414_23116cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003414_23116cztM0_level2_quad_clean.evt
|
| Size (bytes) | 544,596,480 | 128,730,240 |
| Size | 519.4 MB
| 122.8 MB
|
| Events in quadrant A | 5,378,992 | 828,779 |
| Events in quadrant B | 3,223,931 | 941,829 |
| Events in quadrant C | 3,106,458 | 877,984 |
| Events in quadrant D | 4,368,956 | 822,825 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19958 | 2 |
| B | 0 | 13489 | 2 |
| C | 0 | 13079 | 2 |
| D | 0 | 17131 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 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 | 6119 | 924 | 15.100507% |
| B | 6119 | 49 | 0.800784% |
| C | 6119 | 59 | 0.964210% |
| D | 6119 | 325 | 5.311325% |
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 | 7519 | 6120 | 756 | 756 | 10.05% | 12.35% |  |
| B | 7519 | 6120 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7519 | 6120 | 3 | 3 | 0.04% | 0.05% |  |
| D | 7519 | 6120 | 256 | 256 | 3.40% | 4.18% |  |
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 | 6 | 16 | 2596172 | 17930.68 | 722 | 709 | 144.7 |
| A | 13 | 254 | 10124 | 65.04 | 722 | 709 | 144.7 |
| A | 0 | 226 | 6311 | 38.7 | 722 | 709 | 144.7 |
| B | 0 | 190 | 47338 | 320.83 | 789 | 771 | 145.1 |
| B | 0 | 189 | 24809 | 165.61 | 789 | 771 | 145.1 |
| B | 0 | 245 | 23844 | 158.96 | 789 | 771 | 145.1 |
| C | 14 | 238 | 121424 | 705.08 | 745 | 751 | 171.1 |
| C | 0 | 207 | 26048 | 147.81 | 745 | 751 | 171.1 |
| C | 0 | 10 | 25826 | 146.51 | 745 | 751 | 171.1 |
| D | 12 | 233 | 1063984 | 6002.0 | 731 | 710 | 177.2 |
| D | 1 | 239 | 226433 | 1274.17 | 731 | 710 | 177.2 |
| D | 1 | 52 | 129572 | 727.4 | 731 | 710 | 177.2 |
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 |  |