Observation information
- date-obs: 2018-04-28
- time-obs: 13:18:14.940400000
- date-end: 2018-04-28
- time-end: 15:39:59.938200000
- obs_id: A04_225T01_9000002062
- exposure: 3839.27831574
- sourceid: 4U 1702-429
- observer: navinsridhar
- ra_pnt: 256.5638
- dec_pnt: -43.03575
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_225T01_9000002062_13965cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13965cztM0_level2_quad_clean.evt
|
| Size (bytes) | 463,910,400 | 82,134,720 |
| Size | 442.4 MB
| 78.3 MB
|
| Events in quadrant A | 3,337,246 | 515,375 |
| Events in quadrant B | 3,430,345 | 527,035 |
| Events in quadrant C | 3,216,862 | 509,537 |
| Events in quadrant D | 3,629,629 | 487,980 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14191 | 3 |
| B | 0 | 14379 | 2 |
| C | 0 | 13762 | 2 |
| D | 0 | 15120 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6404 | 95 | 1.483448% |
| B | 6404 | 95 | 1.483448% |
| C | 6404 | 73 | 1.139913% |
| D | 6404 | 149 | 2.326671% |
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 | 7580 | 6406 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7580 | 6406 | 6 | 6 | 0.08% | 0.09% |  |
| C | 7580 | 6406 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7580 | 6406 | 75 | 75 | 0.99% | 1.17% |  |
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 | 61276 | 363.26 | 824 | 807 | 166.5 |
| A | 14 | 111 | 58375 | 345.83 | 824 | 807 | 166.5 |
| A | 1 | 162 | 17710 | 101.54 | 824 | 807 | 166.5 |
| B | 0 | 189 | 81052 | 520.71 | 826 | 808 | 154.1 |
| B | 3 | 209 | 26714 | 168.11 | 826 | 808 | 154.1 |
| B | 0 | 190 | 25851 | 162.51 | 826 | 808 | 154.1 |
| C | 3 | 233 | 106199 | 580.94 | 792 | 795 | 181.4 |
| C | 8 | 222 | 15963 | 83.6 | 792 | 795 | 181.4 |
| C | 13 | 61 | 5785 | 27.5 | 792 | 795 | 181.4 |
| D | 15 | 0 | 143707 | 707.77 | 778 | 763 | 202.0 |
| D | 8 | 195 | 108955 | 535.7 | 778 | 763 | 202.0 |
| D | 13 | 189 | 99977 | 491.24 | 778 | 763 | 202.0 |
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 |  |