Observation information
- date-obs: 2017-07-03
- time-obs: 04:14:54.727000000
- date-end: 2017-07-03
- time-end: 06:30:56.727600000
- obs_id: G07_049T01_9000001352
- exposure: 6592.39665455
- sourceid: 4U 1626-67
- observer: dedhia
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_049T01_9000001352_09533cztM0_level2.evt
| modeM0/AS1G07_049T01_9000001352_09533cztM0_level2_quad_clean.evt
|
| Size (bytes) | 457,712,640 | 123,019,200 |
| Size | 436.5 MB
| 117.3 MB
|
| Events in quadrant A | 3,442,722 | 823,226 |
| Events in quadrant B | 3,186,259 | 829,365 |
| Events in quadrant C | 3,290,694 | 815,502 |
| Events in quadrant D | 3,491,210 | 795,268 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14615 | 63 |
| B | 0 | 13768 | 38 |
| C | 0 | 14403 | 62 |
| D | 0 | 14925 | 85 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 6 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6641 | 66 | 0.993826% |
| B | 6651 | 68 | 1.022403% |
| C | 6641 | 113 | 1.701551% |
| D | 6638 | 84 | 1.265441% |
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 | 7639 | 6670 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7639 | 6670 | 9 | 9 | 0.12% | 0.13% |  |
| C | 7639 | 6666 | 38 | 38 | 0.50% | 0.57% |  |
| D | 7639 | 6668 | 29 | 29 | 0.38% | 0.43% |  |
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 | 1 | 162 | 199667 | 1254.52 | 776 | 760 | 158.6 |
| A | 1 | 178 | 91423 | 571.82 | 776 | 760 | 158.6 |
| A | 1 | 161 | 86911 | 543.36 | 776 | 760 | 158.6 |
| B | 0 | 214 | 74608 | 499.95 | 779 | 759 | 147.7 |
| B | 0 | 187 | 24203 | 158.71 | 779 | 759 | 147.7 |
| B | 4 | 80 | 18335 | 118.99 | 779 | 759 | 147.7 |
| C | 4 | 254 | 284291 | 1613.31 | 758 | 761 | 175.7 |
| C | 14 | 234 | 25133 | 138.68 | 758 | 761 | 175.7 |
| C | 8 | 128 | 11754 | 62.55 | 758 | 761 | 175.7 |
| D | 1 | 52 | 299940 | 1617.59 | 750 | 727 | 185.0 |
| D | 8 | 195 | 102350 | 549.39 | 750 | 727 | 185.0 |
| D | 13 | 104 | 86463 | 463.5 | 750 | 727 | 185.0 |
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 |  |