Observation information
- date-obs: 2017-09-27
- time-obs: 11:10:18.529500000
- date-end: 2017-09-27
- time-end: 12:33:25.531500000
- obs_id: G07_003T02_9000001564
- exposure: 2676.11155317
- sourceid: NGC 7252
- observer: koshy
- ra_pnt: 335.1862
- dec_pnt: -24.67833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_003T02_9000001564_10811cztM0_level2.evt
| modeM0/AS1G07_003T02_9000001564_10811cztM0_level2_quad_clean.evt
|
| Size (bytes) | 434,321,280 | 54,426,240 |
| Size | 414.2 MB
| 51.9 MB
|
| Events in quadrant A | 4,892,450 | 298,317 |
| Events in quadrant B | 3,161,155 | 364,759 |
| Events in quadrant C | 1,843,531 | 368,341 |
| Events in quadrant D | 2,996,648 | 345,957 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 78 | 0 |
| B | 0 | 78 | 0 |
| C | 0 | 78 | 0 |
| D | 0 | 78 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17166 | 1 |
| B | 0 | 11903 | 1 |
| C | 0 | 8075 | 1 |
| D | 0 | 11533 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3823 | 1157 | 30.264190% |
| B | 3823 | 500 | 13.078734% |
| C | 3823 | 61 | 1.595606% |
| D | 3823 | 158 | 4.132880% |
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 | 4988 | 3823 | 802 | 802 | 16.08% | 20.98% |  |
| B | 4988 | 3823 | 287 | 287 | 5.75% | 7.51% |  |
| C | 4988 | 3823 | 4 | 4 | 0.08% | 0.10% |  |
| D | 4988 | 3823 | 94 | 94 | 1.88% | 2.46% |  |
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 | 5 | 3232670 | 37849.08 | 420 | 412 | 85.4 |
| A | 4 | 2 | 27275 | 314.56 | 420 | 412 | 85.4 |
| A | 3 | 1 | 5241 | 56.55 | 420 | 412 | 85.4 |
| B | 4 | 239 | 1218407 | 13776.26 | 461 | 451 | 88.4 |
| B | 15 | 204 | 68646 | 771.35 | 461 | 451 | 88.4 |
| B | 0 | 214 | 31446 | 350.58 | 461 | 451 | 88.4 |
| C | 14 | 234 | 33466 | 307.95 | 464 | 468 | 107.2 |
| C | 13 | 61 | 3455 | 27.88 | 464 | 468 | 107.2 |
| C | 8 | 222 | 2117 | 15.39 | 464 | 468 | 107.2 |
| D | 12 | 233 | 346749 | 3127.42 | 461 | 448 | 110.7 |
| D | 2 | 14 | 205888 | 1855.32 | 461 | 448 | 110.7 |
| D | 8 | 195 | 175800 | 1583.59 | 461 | 448 | 110.7 |
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 |  |