Observation information
- date-obs: 2016-11-25
- time-obs: 19:58:14.676600000
- date-end: 2016-11-25
- time-end: 22:23:29.063000000
- obs_id: A02_118T01_9000000826
- exposure: 6957.28751694
- sourceid: LMC X-1
- observer: anjali
- ra_pnt: 84.91183
- dec_pnt: -69.74324
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_118T01_9000000826_06287cztM0_level2.evt
| modeM0/AS1A02_118T01_9000000826_06287cztM0_level2_quad_clean.evt
|
| Size (bytes) | 657,080,640 | 123,215,040 |
| Size | 626.6 MB
| 117.5 MB
|
| Events in quadrant A | 4,491,258 | 801,005 |
| Events in quadrant B | 4,692,635 | 810,383 |
| Events in quadrant C | 3,495,489 | 804,448 |
| Events in quadrant D | 6,665,506 | 746,409 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 170 | 0 |
| B | 0 | 170 | 0 |
| C | 0 | 170 | 0 |
| D | 0 | 170 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18689 | 3 |
| B | 0 | 19666 | 2 |
| C | 0 | 16621 | 2 |
| D | 0 | 25499 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8185 | 91 | 1.111790% |
| B | 8185 | 271 | 3.310935% |
| C | 8185 | 22 | 0.268784% |
| D | 8185 | 712 | 8.698839% |
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 | 8715 | 8187 | 22 | 22 | 0.25% | 0.27% |  |
| B | 8715 | 8187 | 123 | 123 | 1.41% | 1.50% |  |
| C | 8715 | 8187 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8715 | 8185 | 625 | 625 | 7.17% | 7.64% |  |
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 | 8 | 15 | 761817 | 4040.55 | 922 | 899 | 188.3 |
| A | 13 | 251 | 102125 | 537.52 | 922 | 899 | 188.3 |
| A | 14 | 111 | 29345 | 151.05 | 922 | 899 | 188.3 |
| B | 3 | 64 | 486503 | 2751.59 | 929 | 907 | 176.5 |
| B | 0 | 219 | 376533 | 2128.45 | 929 | 907 | 176.5 |
| B | 15 | 204 | 88364 | 495.57 | 929 | 907 | 176.5 |
| C | 13 | 61 | 7183 | 30.1 | 894 | 898 | 208.8 |
| C | 8 | 222 | 4799 | 18.68 | 894 | 898 | 208.8 |
| C | 3 | 202 | 2292 | 6.68 | 894 | 898 | 208.8 |
| D | 12 | 220 | 2552898 | 12031.93 | 863 | 835 | 212.1 |
| D | 2 | 152 | 275441 | 1294.65 | 863 | 835 | 212.1 |
| D | 2 | 63 | 219828 | 1032.46 | 863 | 835 | 212.1 |
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 |  |