Observation information
- date-obs: 2018-05-15
- time-obs: 11:16:34.522300000
- date-end: 2018-05-15
- time-end: 13:34:43.520800000
- obs_id: G08_084T01_9000002100
- exposure: 4290.07430322
- sourceid: 4U 1626-67
- observer: Kmukerjee
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_084T01_9000002100_14215cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14215cztM0_level2_quad_clean.evt
|
| Size (bytes) | 532,324,800 | 93,343,680 |
| Size | 507.7 MB
| 89.0 MB
|
| Events in quadrant A | 3,489,503 | 598,057 |
| Events in quadrant B | 3,743,504 | 601,315 |
| Events in quadrant C | 3,535,482 | 586,563 |
| Events in quadrant D | 4,891,684 | 566,527 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14512 | 4 |
| B | 0 | 15222 | 3 |
| C | 0 | 14560 | 3 |
| D | 0 | 19430 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6802 | 165 | 2.425757% |
| B | 6802 | 191 | 2.807998% |
| C | 6802 | 120 | 1.764187% |
| D | 6802 | 195 | 2.866804% |
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 | 7943 | 6805 | 20 | 20 | 0.25% | 0.29% |  |
| B | 7943 | 6804 | 16 | 16 | 0.20% | 0.24% |  |
| C | 7943 | 6805 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7943 | 6805 | 63 | 63 | 0.79% | 0.93% |  |
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 | 69 | 65768 | 378.47 | 862 | 842 | 171.6 |
| A | 12 | 189 | 58312 | 335.0 | 862 | 842 | 171.6 |
| A | 8 | 15 | 24679 | 138.95 | 862 | 842 | 171.6 |
| B | 0 | 229 | 140425 | 875.03 | 855 | 836 | 159.5 |
| B | 4 | 97 | 70337 | 435.67 | 855 | 836 | 159.5 |
| B | 0 | 219 | 47650 | 293.46 | 855 | 836 | 159.5 |
| C | 3 | 233 | 292494 | 1559.89 | 830 | 833 | 187.0 |
| C | 13 | 61 | 6084 | 28.08 | 830 | 833 | 187.0 |
| C | 9 | 54 | 2931 | 11.22 | 830 | 833 | 187.0 |
| D | 8 | 195 | 768234 | 3911.92 | 830 | 811 | 196.2 |
| D | 5 | 222 | 699872 | 3563.44 | 830 | 811 | 196.2 |
| D | 10 | 199 | 95210 | 481.2 | 830 | 811 | 196.2 |
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 |  |