Observation information
- date-obs: 2020-03-31
- time-obs: 22:24:42.851500000
- date-end: 2020-04-01
- time-end: 00:44:21.845000000
- obs_id: A08_008T01_9000003596
- exposure: 4305.01635151
- 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_9000003596_24376cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003596_24376cztM0_level2_quad_clean.evt
|
| Size (bytes) | 446,086,080 | 100,229,760 |
| Size | 425.4 MB
| 95.6 MB
|
| Events in quadrant A | 3,116,175 | 654,912 |
| Events in quadrant B | 3,178,392 | 676,364 |
| Events in quadrant C | 3,465,445 | 644,435 |
| Events in quadrant D | 3,325,375 | 623,852 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12980 | 2 |
| B | 0 | 13111 | 2 |
| C | 0 | 14019 | 2 |
| D | 0 | 13904 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6248 | 25 | 0.400128% |
| B | 6248 | 37 | 0.592190% |
| C | 6248 | 68 | 1.088348% |
| D | 6247 | 39 | 0.624300% |
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 | 7583 | 6249 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7583 | 6249 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7583 | 6249 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7582 | 6248 | 23 | 23 | 0.30% | 0.37% |  |
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 | 13 | 170 | 16431 | 98.43 | 804 | 789 | 158.9 |
| A | 13 | 254 | 10503 | 61.13 | 804 | 789 | 158.9 |
| A | 0 | 226 | 6874 | 38.29 | 804 | 789 | 158.9 |
| B | 0 | 190 | 19518 | 126.03 | 807 | 790 | 148.6 |
| B | 12 | 111 | 17172 | 110.24 | 807 | 790 | 148.6 |
| B | 11 | 111 | 15619 | 99.79 | 807 | 790 | 148.6 |
| C | 7 | 247 | 302202 | 1700.91 | 776 | 784 | 177.2 |
| C | 14 | 238 | 127655 | 715.93 | 776 | 784 | 177.2 |
| C | 2 | 16 | 6553 | 32.55 | 776 | 784 | 177.2 |
| D | 8 | 195 | 117236 | 623.13 | 778 | 757 | 186.9 |
| D | 12 | 233 | 68090 | 360.21 | 778 | 757 | 186.9 |
| D | 9 | 35 | 60239 | 318.21 | 778 | 757 | 186.9 |
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 |  |