Observation information
- date-obs: 2019-03-15
- time-obs: 20:15:21.539400000
- date-end: 2019-03-15
- time-end: 22:33:26.543600000
- obs_id: T03_091T01_9000002798
- exposure: 5397.92596428
- sourceid: Vela X1
- observer: Kmukerjee
- ra_pnt: 135.5286
- dec_pnt: -40.55469
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_091T01_9000002798_18720cztM0_level2.evt
| modeM0/AS1T03_091T01_9000002798_18720cztM0_level2_quad_clean.evt
|
| Size (bytes) | 582,779,520 | 107,631,360 |
| Size | 555.8 MB
| 102.6 MB
|
| Events in quadrant A | 3,532,718 | 715,450 |
| Events in quadrant B | 6,322,022 | 655,867 |
| Events in quadrant C | 3,871,995 | 686,193 |
| Events in quadrant D | 3,411,498 | 677,491 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15605 | 3 |
| B | 0 | 23836 | 3 |
| C | 0 | 16404 | 3 |
| D | 0 | 15504 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7530 | 54 | 0.717131% |
| B | 7530 | 1074 | 14.262948% |
| C | 7530 | 102 | 1.354582% |
| D | 7531 | 26 | 0.345240% |
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 | 8285 | 7533 | 9 | 9 | 0.11% | 0.12% |  |
| B | 8285 | 7533 | 797 | 797 | 9.62% | 10.58% |  |
| C | 8285 | 7533 | 2 | 2 | 0.02% | 0.03% |  |
| D | 8286 | 7534 | 2 | 2 | 0.02% | 0.03% |  |
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 | 4 | 2 | 48958 | 265.62 | 900 | 881 | 181.0 |
| A | 13 | 254 | 11938 | 61.09 | 900 | 881 | 181.0 |
| A | 15 | 192 | 8105 | 39.91 | 900 | 881 | 181.0 |
| B | 10 | 245 | 2891552 | 17612.97 | 849 | 827 | 164.1 |
| B | 7 | 220 | 54992 | 330.02 | 849 | 827 | 164.1 |
| B | 12 | 111 | 19215 | 112.04 | 849 | 827 | 164.1 |
| C | 3 | 233 | 354040 | 1762.35 | 855 | 860 | 200.4 |
| C | 14 | 238 | 133733 | 663.03 | 855 | 860 | 200.4 |
| C | 0 | 207 | 17839 | 84.72 | 855 | 860 | 200.4 |
| D | 7 | 238 | 82602 | 388.04 | 866 | 839 | 210.7 |
| D | 2 | 234 | 35804 | 165.94 | 866 | 839 | 210.7 |
| D | 14 | 34 | 25706 | 118.02 | 866 | 839 | 210.7 |
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 |  |