Observation information
- date-obs: 2017-10-08
- time-obs: 07:43:51.416600000
- date-end: 2017-10-08
- time-end: 09:08:24.415500000
- obs_id: G08_027T06_9000001594
- exposure: 2830.29429653
- sourceid: NGC 6440
- observer: sudip
- ra_pnt: 267.2195
- dec_pnt: -20.35958
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_027T06_9000001594_10971cztM0_level2.evt
| modeM0/AS1G08_027T06_9000001594_10971cztM0_level2_quad_clean.evt
|
| Size (bytes) | 300,528,000 | 61,079,040 |
| Size | 286.6 MB
| 58.2 MB
|
| Events in quadrant A | 2,189,925 | 405,848 |
| Events in quadrant B | 2,763,818 | 401,396 |
| Events in quadrant C | 1,875,226 | 394,503 |
| Events in quadrant D | 2,013,230 | 379,287 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8920 | 2 |
| B | 0 | 10782 | 1 |
| C | 0 | 8050 | 1 |
| D | 0 | 8474 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 78 | 0 |
| B | 0 | 78 | 0 |
| C | 0 | 78 | 0 |
| D | 0 | 78 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3798 | 144 | 3.791469% |
| B | 3798 | 288 | 7.582938% |
| C | 3798 | 103 | 2.711954% |
| D | 3798 | 115 | 3.027909% |
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 | 5073 | 3798 | 19 | 19 | 0.37% | 0.50% |  |
| B | 5073 | 3798 | 112 | 112 | 2.21% | 2.95% |  |
| C | 5073 | 3798 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5073 | 3798 | 15 | 15 | 0.30% | 0.39% |  |
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 | 225426 | 2195.62 | 505 | 495 | 102.4 |
| A | 8 | 15 | 11114 | 103.66 | 505 | 495 | 102.4 |
| A | 0 | 226 | 4636 | 40.42 | 505 | 495 | 102.4 |
| B | 4 | 239 | 759951 | 7920.0 | 495 | 484 | 95.9 |
| B | 0 | 214 | 33568 | 345.01 | 495 | 484 | 95.9 |
| B | 0 | 187 | 15652 | 158.18 | 495 | 484 | 95.9 |
| C | 13 | 61 | 3485 | 27.05 | 480 | 481 | 111.0 |
| C | 14 | 234 | 2539 | 18.53 | 480 | 481 | 111.0 |
| C | 12 | 4 | 1523 | 9.38 | 480 | 481 | 111.0 |
| D | 1 | 52 | 86525 | 740.3 | 483 | 470 | 116.2 |
| D | 13 | 104 | 32925 | 279.2 | 483 | 470 | 116.2 |
| D | 8 | 195 | 28380 | 240.1 | 483 | 470 | 116.2 |
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 |  |