Observation information
- date-obs: 2018-04-28
- time-obs: 18:14:28.937900000
- date-end: 2018-04-28
- time-end: 20:51:25.936500000
- obs_id: A04_225T01_9000002062
- exposure: 5355.92089995
- 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_13968cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13968cztM0_level2_quad_clean.evt
|
| Size (bytes) | 523,212,480 | 116,061,120 |
| Size | 499.0 MB
| 110.7 MB
|
| Events in quadrant A | 3,439,355 | 770,543 |
| Events in quadrant B | 3,880,115 | 798,696 |
| Events in quadrant C | 3,448,573 | 768,120 |
| Events in quadrant D | 4,620,882 | 708,639 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14480 | 3 |
| B | 0 | 15832 | 2 |
| C | 0 | 14299 | 2 |
| D | 0 | 18100 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6732 | 95 | 1.411171% |
| B | 6732 | 202 | 3.000594% |
| C | 6732 | 27 | 0.401070% |
| D | 6732 | 334 | 4.961378% |
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 | 9418 | 6735 | 1 | 1 | 0.01% | 0.01% |  |
| B | 9418 | 6735 | 44 | 44 | 0.47% | 0.65% |  |
| C | 9418 | 6735 | 1 | 1 | 0.01% | 0.01% |  |
| D | 9418 | 6735 | 297 | 297 | 3.15% | 4.41% |  |
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 | 14 | 111 | 69543 | 398.23 | 861 | 844 | 172.5 |
| A | 1 | 162 | 19621 | 108.85 | 861 | 844 | 172.5 |
| A | 9 | 143 | 17045 | 93.91 | 861 | 844 | 172.5 |
| B | 10 | 245 | 225035 | 1381.81 | 871 | 850 | 162.2 |
| B | 3 | 64 | 50620 | 306.77 | 871 | 850 | 162.2 |
| B | 4 | 80 | 49118 | 297.51 | 871 | 850 | 162.2 |
| C | 3 | 233 | 156469 | 807.58 | 842 | 849 | 192.7 |
| C | 13 | 61 | 5908 | 26.25 | 842 | 849 | 192.7 |
| C | 6 | 253 | 5676 | 25.05 | 842 | 849 | 192.7 |
| D | 13 | 122 | 1048515 | 4953.76 | 814 | 793 | 211.5 |
| D | 8 | 195 | 116057 | 544.98 | 814 | 793 | 211.5 |
| D | 2 | 14 | 87584 | 410.36 | 814 | 793 | 211.5 |
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 |  |