Observation information
- date-obs: 2020-04-01
- time-obs: 14:27:13.813700000
- date-end: 2020-04-01
- time-end: 16:25:33.808500000
- obs_id: A08_008T01_9000003596
- exposure: 4475.41016223
- 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_24385cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003596_24385cztM0_level2_quad_clean.evt
|
| Size (bytes) | 725,503,680 | 89,035,200 |
| Size | 691.9 MB
| 84.9 MB
|
| Events in quadrant A | 2,946,609 | 631,107 |
| Events in quadrant B | 2,901,634 | 640,940 |
| Events in quadrant C | 12,047,474 | 406,674 |
| Events in quadrant D | 3,663,221 | 590,269 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12821 | 1 |
| B | 0 | 12575 | 1 |
| C | 0 | 40015 | 7 |
| D | 0 | 15027 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6101 | 83 | 1.360433% |
| B | 6101 | 37 | 0.606458% |
| C | 6100 | 3796 | 62.229508% |
| D | 6100 | 137 | 2.245902% |
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 | 7101 | 6102 | 34 | 34 | 0.48% | 0.56% |  |
| B | 7101 | 6102 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7100 | 6101 | 3281 | 3281 | 46.21% | 53.78% |  |
| D | 7100 | 6101 | 100 | 100 | 1.41% | 1.64% |  |
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 | 10 | 111894 | 749.12 | 734 | 718 | 148.4 |
| A | 13 | 254 | 9639 | 60.11 | 734 | 718 | 148.4 |
| A | 3 | 137 | 6568 | 39.42 | 734 | 718 | 148.4 |
| B | 12 | 111 | 16813 | 115.75 | 730 | 711 | 139.1 |
| B | 11 | 111 | 14639 | 100.12 | 730 | 711 | 139.1 |
| B | 0 | 230 | 13951 | 95.18 | 730 | 711 | 139.1 |
| C | 7 | 247 | 9897582 | 81847.82 | 521 | 523 | 120.9 |
| C | 14 | 238 | 79170 | 650.4 | 521 | 523 | 120.9 |
| C | 7 | 226 | 26008 | 210.76 | 521 | 523 | 120.9 |
| D | 1 | 52 | 491969 | 2892.46 | 698 | 678 | 169.9 |
| D | 12 | 233 | 337408 | 1982.49 | 698 | 678 | 169.9 |
| D | 7 | 238 | 63904 | 372.24 | 698 | 678 | 169.9 |
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 |  |