Observation information
- date-obs: 2017-09-27
- time-obs: 06:18:35.527200000
- date-end: 2017-09-27
- time-end: 08:24:33.526800000
- obs_id: G07_003T02_9000001564
- exposure: 3018.3301839
- 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_10807cztM0_level2.evt
| modeM0/AS1G07_003T02_9000001564_10807cztM0_level2_quad_clean.evt
|
| Size (bytes) | 568,195,200 | 62,827,200 |
| Size | 541.9 MB
| 59.9 MB
|
| Events in quadrant A | 5,013,352 | 360,769 |
| Events in quadrant B | 4,790,953 | 357,406 |
| Events in quadrant C | 2,973,055 | 371,201 |
| Events in quadrant D | 3,984,918 | 354,309 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19217 | 4 |
| B | 0 | 18520 | 1 |
| C | 0 | 13404 | 1 |
| D | 0 | 16156 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6577 | 591 | 8.985860% |
| B | 6578 | 461 | 7.008209% |
| C | 6578 | 31 | 0.471268% |
| D | 6578 | 176 | 2.675585% |
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 | 7558 | 6578 | 429 | 429 | 5.68% | 6.52% |  |
| B | 7558 | 6579 | 260 | 260 | 3.44% | 3.95% |  |
| C | 7558 | 6579 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7558 | 6579 | 127 | 127 | 1.68% | 1.93% |  |
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 | 8 | 5 | 2119095 | 14040.53 | 741 | 724 | 150.9 |
| A | 4 | 2 | 24588 | 158.17 | 741 | 724 | 150.9 |
| A | 8 | 15 | 9219 | 56.3 | 741 | 724 | 150.9 |
| B | 4 | 239 | 1651209 | 11224.66 | 766 | 747 | 147.0 |
| B | 15 | 204 | 109684 | 740.87 | 766 | 747 | 147.0 |
| B | 0 | 85 | 30825 | 204.56 | 766 | 747 | 147.0 |
| C | 13 | 61 | 5605 | 27.36 | 761 | 765 | 176.9 |
| C | 8 | 222 | 4099 | 18.85 | 761 | 765 | 176.9 |
| C | 14 | 234 | 1830 | 6.02 | 761 | 765 | 176.9 |
| D | 1 | 52 | 307399 | 1721.73 | 747 | 728 | 178.1 |
| D | 13 | 138 | 223964 | 1253.31 | 747 | 728 | 178.1 |
| D | 8 | 195 | 133501 | 745.42 | 747 | 728 | 178.1 |
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 |  |