Observation information
- date-obs: 2020-03-31
- time-obs: 19:01:22.861100000
- date-end: 2020-03-31
- time-end: 21:15:24.855400000
- obs_id: A08_008T01_9000003596
- exposure: 4950.95997438
- 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_24374cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003596_24374cztM0_level2_quad_clean.evt
|
| Size (bytes) | 459,659,520 | 112,772,160 |
| Size | 438.4 MB
| 107.5 MB
|
| Events in quadrant A | 3,121,724 | 757,498 |
| Events in quadrant B | 3,276,513 | 781,058 |
| Events in quadrant C | 3,784,816 | 729,133 |
| Events in quadrant D | 3,310,209 | 708,551 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13267 | 2 |
| B | 0 | 13572 | 2 |
| C | 0 | 15507 | 2 |
| D | 0 | 13825 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6296 | 20 | 0.317662% |
| B | 6296 | 42 | 0.667090% |
| C | 6296 | 72 | 1.143583% |
| D | 6295 | 39 | 0.619539% |
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 | 7581 | 6297 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7581 | 6297 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7581 | 6297 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7580 | 6296 | 26 | 26 | 0.34% | 0.41% |  |
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 | 254 | 10107 | 58.59 | 809 | 795 | 158.9 |
| A | 3 | 137 | 7024 | 39.2 | 809 | 795 | 158.9 |
| A | 0 | 226 | 6876 | 38.26 | 809 | 795 | 158.9 |
| B | 4 | 200 | 94178 | 624.69 | 812 | 794 | 149.5 |
| B | 12 | 111 | 17505 | 111.79 | 812 | 794 | 149.5 |
| B | 11 | 111 | 15790 | 100.32 | 812 | 794 | 149.5 |
| C | 7 | 247 | 644820 | 3641.96 | 770 | 776 | 176.8 |
| C | 14 | 238 | 126525 | 711.09 | 770 | 776 | 176.8 |
| C | 2 | 16 | 8999 | 46.5 | 770 | 776 | 176.8 |
| D | 8 | 195 | 133998 | 714.56 | 773 | 752 | 186.5 |
| D | 1 | 52 | 104056 | 553.99 | 773 | 752 | 186.5 |
| D | 12 | 218 | 72006 | 382.11 | 773 | 752 | 186.5 |
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 |  |