Observation information
- date-obs: 2019-05-28
- time-obs: 14:07:46.279200000
- date-end: 2019-05-28
- time-end: 16:11:12.277000000
- obs_id: C04_009T06_9000002960
- exposure: 6237.12317529
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T06_9000002960_19811cztM0_level2.evt
| modeM0/AS1C04_009T06_9000002960_19811cztM0_level2_quad_clean.evt
|
| Size (bytes) | 529,902,720 | 120,888,000 |
| Size | 505.4 MB
| 115.3 MB
|
| Events in quadrant A | 2,967,193 | 831,008 |
| Events in quadrant B | 3,494,204 | 834,437 |
| Events in quadrant C | 3,095,230 | 812,484 |
| Events in quadrant D | 6,060,185 | 739,589 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13123 | 1 |
| B | 0 | 14614 | 1 |
| C | 0 | 13422 | 2 |
| D | 0 | 22377 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6361 | 45 | 0.707436% |
| B | 6362 | 68 | 1.068846% |
| C | 6361 | 81 | 1.273385% |
| D | 6361 | 912 | 14.337368% |
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 | 7406 | 6361 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7407 | 6362 | 16 | 16 | 0.22% | 0.25% |  |
| C | 7406 | 6361 | 6 | 6 | 0.08% | 0.09% |  |
| D | 7406 | 6361 | 721 | 721 | 9.74% | 11.33% |  |
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 | 5 | 16 | 18748 | 117.36 | 765 | 749 | 153.4 |
| A | 0 | 226 | 6698 | 38.79 | 765 | 749 | 153.4 |
| A | 12 | 194 | 5732 | 32.49 | 765 | 749 | 153.4 |
| B | 10 | 245 | 251778 | 1756.79 | 761 | 743 | 142.9 |
| B | 0 | 197 | 74541 | 516.45 | 761 | 743 | 142.9 |
| B | 7 | 220 | 47173 | 324.93 | 761 | 743 | 142.9 |
| C | 14 | 238 | 115177 | 663.99 | 738 | 742 | 172.3 |
| C | 0 | 207 | 70277 | 403.46 | 738 | 742 | 172.3 |
| C | 3 | 233 | 32882 | 186.49 | 738 | 742 | 172.3 |
| D | 1 | 52 | 2517217 | 14656.55 | 708 | 687 | 171.7 |
| D | 12 | 218 | 149978 | 869.49 | 708 | 687 | 171.7 |
| D | 7 | 38 | 145416 | 842.92 | 708 | 687 | 171.7 |
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 |  |