Observation information
- date-obs: 2017-09-27
- time-obs: 02:55:30.527000000
- date-end: 2017-09-27
- time-end: 06:42:43.526800000
- obs_id: G07_003T02_9000001564
- exposure: 6126.51855584
- 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_10806cztM0_level2.evt
| modeM0/AS1G07_003T02_9000001564_10806cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,016,971,200 | 124,136,640 |
| Size | 969.9 MB
| 118.4 MB
|
| Events in quadrant A | 9,733,330 | 711,679 |
| Events in quadrant B | 8,852,823 | 730,518 |
| Events in quadrant C | 5,328,214 | 753,539 |
| Events in quadrant D | 6,067,099 | 726,277 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 244 | 0 |
| B | 0 | 244 | 0 |
| C | 0 | 244 | 0 |
| D | 0 | 244 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 37046 | 5 |
| B | 0 | 34324 | 2 |
| C | 0 | 24526 | 4 |
| D | 0 | 26466 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12107 | 1047 | 8.647890% |
| B | 12108 | 941 | 7.771721% |
| C | 12107 | 66 | 0.545139% |
| D | 12107 | 99 | 0.817709% |
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 | 13633 | 12110 | 760 | 760 | 5.57% | 6.28% |  |
| B | 13633 | 12109 | 542 | 542 | 3.98% | 4.48% |  |
| C | 13633 | 12110 | 0 | 0 | 0.00% | 0.00% |  |
| D | 13633 | 12110 | 34 | 34 | 0.25% | 0.28% |  |
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 | 4270776 | 15709.73 | 1338 | 1306 | 271.8 |
| A | 4 | 2 | 283303 | 1037.62 | 1338 | 1306 | 271.8 |
| A | 8 | 15 | 12815 | 42.35 | 1338 | 1306 | 271.8 |
| B | 4 | 239 | 3177876 | 12319.47 | 1357 | 1323 | 257.8 |
| B | 15 | 204 | 254129 | 980.44 | 1357 | 1323 | 257.8 |
| B | 0 | 214 | 66473 | 252.67 | 1357 | 1323 | 257.8 |
| C | 8 | 128 | 13203 | 37.73 | 1357 | 1365 | 313.8 |
| C | 13 | 61 | 10032 | 27.62 | 1357 | 1365 | 313.8 |
| C | 8 | 222 | 8689 | 23.34 | 1357 | 1365 | 313.8 |
| D | 13 | 138 | 325373 | 1002.29 | 1345 | 1306 | 323.3 |
| D | 8 | 195 | 200383 | 615.71 | 1345 | 1306 | 323.3 |
| D | 1 | 52 | 102253 | 312.21 | 1345 | 1306 | 323.3 |
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 |  |