Observation information
- date-obs: 2018-10-24
- time-obs: 04:08:04.785200000
- date-end: 2018-10-24
- time-end: 06:15:13.781800000
- obs_id: C04_009T01_9000002448
- exposure: 7188.08527172
- 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_009T01_9000002448_16608cztM0_level2.evt
| modeM0/AS1C04_009T01_9000002448_16608cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,106,240 | 129,202,560 |
| Size | 451.2 MB
| 123.2 MB
|
| Events in quadrant A | 3,168,834 | 852,298 |
| Events in quadrant B | 3,613,856 | 873,008 |
| Events in quadrant C | 3,910,149 | 850,012 |
| Events in quadrant D | 3,143,642 | 834,416 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14612 | 2 |
| B | 0 | 15600 | 1 |
| C | 0 | 16509 | 1 |
| D | 0 | 14783 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7229 | 47 | 0.650159% |
| B | 7229 | 62 | 0.857657% |
| C | 7229 | 73 | 1.009822% |
| D | 7229 | 34 | 0.470328% |
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 | 7630 | 7231 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7630 | 7231 | 5 | 5 | 0.07% | 0.07% |  |
| C | 7630 | 7231 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7630 | 7231 | 7 | 7 | 0.09% | 0.10% |  |
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 | 9 | 143 | 13318 | 75.28 | 816 | 797 | 166.3 |
| A | 15 | 69 | 9194 | 50.49 | 816 | 797 | 166.3 |
| A | 3 | 1 | 7225 | 38.65 | 816 | 797 | 166.3 |
| B | 3 | 209 | 92341 | 583.06 | 823 | 799 | 157.0 |
| B | 0 | 189 | 79655 | 502.26 | 823 | 799 | 157.0 |
| B | 15 | 35 | 66134 | 416.14 | 823 | 799 | 157.0 |
| C | 7 | 247 | 402787 | 2173.21 | 788 | 793 | 185.0 |
| C | 3 | 233 | 310682 | 1675.29 | 788 | 793 | 185.0 |
| C | 14 | 238 | 123285 | 662.2 | 788 | 793 | 185.0 |
| D | 1 | 52 | 59845 | 306.91 | 794 | 769 | 192.5 |
| D | 10 | 70 | 36626 | 186.28 | 794 | 769 | 192.5 |
| D | 2 | 234 | 31168 | 157.93 | 794 | 769 | 192.5 |
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 |  |