Observation information
- date-obs: 2018-03-09
- time-obs: 16:57:16.687700000
- date-end: 2018-03-09
- time-end: 19:00:36.688100000
- obs_id: A04_216T01_9000001968
- exposure: 5029.68137776
- sourceid: Cen X-3
- observer: shivangi
- ra_pnt: 170.3158
- dec_pnt: -60.62297
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_216T01_9000001968_13227cztM0_level2.evt
| modeM0/AS1A04_216T01_9000001968_13227cztM0_level2_quad_clean.evt
|
| Size (bytes) | 487,212,480 | 103,083,840 |
| Size | 464.6 MB
| 98.3 MB
|
| Events in quadrant A | 3,001,828 | 702,723 |
| Events in quadrant B | 5,160,266 | 643,885 |
| Events in quadrant C | 2,901,878 | 692,868 |
| Events in quadrant D | 3,271,492 | 650,651 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13152 | 2 |
| B | 0 | 19414 | 1 |
| C | 0 | 12880 | 1 |
| D | 0 | 13976 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6185 | 45 | 0.727567% |
| B | 6185 | 903 | 14.599838% |
| C | 6185 | 17 | 0.274859% |
| D | 6185 | 97 | 1.568310% |
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 | 7401 | 6187 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7401 | 6187 | 652 | 652 | 8.81% | 10.54% |  |
| C | 7401 | 6187 | 3 | 3 | 0.04% | 0.05% |  |
| D | 7401 | 6187 | 62 | 62 | 0.84% | 1.00% |  |
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 | 15 | 239 | 41520 | 268.68 | 754 | 740 | 151.8 |
| A | 4 | 2 | 29054 | 186.55 | 754 | 740 | 151.8 |
| A | 12 | 96 | 11034 | 67.82 | 754 | 740 | 151.8 |
| B | 4 | 239 | 2094560 | 15843.03 | 703 | 687 | 132.2 |
| B | 3 | 64 | 207457 | 1564.5 | 703 | 687 | 132.2 |
| B | 0 | 219 | 36141 | 268.26 | 703 | 687 | 132.2 |
| C | 15 | 208 | 63414 | 373.25 | 727 | 731 | 167.9 |
| C | 13 | 61 | 5372 | 27.64 | 727 | 731 | 167.9 |
| C | 8 | 222 | 3409 | 15.95 | 727 | 731 | 167.9 |
| D | 1 | 52 | 481414 | 2807.43 | 713 | 692 | 171.2 |
| D | 8 | 195 | 65259 | 377.07 | 713 | 692 | 171.2 |
| D | 2 | 234 | 24642 | 139.87 | 713 | 692 | 171.2 |
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 |  |