Observation information
- date-obs: 2020-01-06
- time-obs: 21:11:24.435500000
- date-end: 2020-01-06
- time-end: 23:27:57.434400000
- obs_id: A08_008T01_9000003414
- exposure: 6063.6309177
- 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_23117cztM0_level2.evt
| modeM0/AS1A08_008T01_9000003414_23117cztM0_level2_quad_clean.evt
|
| Size (bytes) | 583,819,200 | 126,915,840 |
| Size | 556.8 MB
| 121.0 MB
|
| Events in quadrant A | 7,416,565 | 787,139 |
| Events in quadrant B | 3,157,601 | 925,291 |
| Events in quadrant C | 3,324,296 | 865,363 |
| Events in quadrant D | 3,360,919 | 831,292 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26185 | 2 |
| B | 0 | 13310 | 2 |
| C | 0 | 13737 | 2 |
| D | 0 | 14244 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6225 | 1496 | 24.032129% |
| B | 6225 | 50 | 0.803213% |
| C | 6225 | 100 | 1.606426% |
| D | 6224 | 85 | 1.365681% |
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 | 7585 | 6226 | 1199 | 1199 | 15.81% | 19.26% |  |
| B | 7585 | 6226 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7585 | 6226 | 12 | 12 | 0.16% | 0.19% |  |
| D | 7584 | 6225 | 50 | 50 | 0.66% | 0.80% |  |
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 | 4701957 | 33508.8 | 704 | 691 | 140.3 |
| A | 13 | 254 | 10419 | 69.34 | 704 | 691 | 140.3 |
| A | 0 | 226 | 5966 | 37.6 | 704 | 691 | 140.3 |
| B | 0 | 190 | 40175 | 273.09 | 782 | 763 | 144.3 |
| B | 0 | 189 | 16806 | 111.16 | 782 | 763 | 144.3 |
| B | 12 | 111 | 16593 | 109.69 | 782 | 763 | 144.3 |
| C | 9 | 15 | 159405 | 919.39 | 746 | 753 | 172.6 |
| C | 14 | 238 | 119803 | 689.89 | 746 | 753 | 172.6 |
| C | 2 | 16 | 60568 | 346.63 | 746 | 753 | 172.6 |
| D | 12 | 233 | 200500 | 1122.87 | 740 | 721 | 177.9 |
| D | 1 | 52 | 195629 | 1095.49 | 740 | 721 | 177.9 |
| D | 13 | 153 | 39617 | 218.62 | 740 | 721 | 177.9 |
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 |  |