Observation information
- date-obs: 2018-12-27
- time-obs: 00:43:09.367700000
- date-end: 2018-12-27
- time-end: 03:00:39.364100000
- obs_id: T03_066T01_9000002600
- exposure: 4823.72356206
- sourceid: NGC 4228
- observer: askpati
- ra_pnt: 183.8872
- dec_pnt: 36.28361
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_066T01_9000002600_17554cztM0_level2.evt
| modeM0/AS1T03_066T01_9000002600_17554cztM0_level2_quad_clean.evt
|
| Size (bytes) | 536,322,240 | 96,500,160 |
| Size | 511.5 MB
| 92.0 MB
|
| Events in quadrant A | 4,378,247 | 625,064 |
| Events in quadrant B | 3,135,701 | 640,417 |
| Events in quadrant C | 4,790,900 | 596,226 |
| Events in quadrant D | 3,484,937 | 595,607 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17654 | 2 |
| B | 0 | 13742 | 2 |
| C | 0 | 18604 | 2 |
| D | 0 | 15183 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6668 | 733 | 10.992801% |
| B | 6668 | 48 | 0.719856% |
| C | 6668 | 416 | 6.238752% |
| D | 6668 | 105 | 1.574685% |
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 | 7708 | 6669 | 490 | 490 | 6.36% | 7.35% |  |
| B | 7708 | 6668 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7708 | 6669 | 269 | 269 | 3.49% | 4.03% |  |
| D | 7708 | 6669 | 55 | 55 | 0.71% | 0.82% |  |
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 | 14 | 237 | 1572420 | 10674.64 | 725 | 708 | 147.2 |
| A | 15 | 174 | 15669 | 101.61 | 725 | 708 | 147.2 |
| A | 0 | 226 | 6238 | 37.56 | 725 | 708 | 147.2 |
| B | 12 | 111 | 18130 | 114.59 | 798 | 780 | 151.4 |
| B | 11 | 111 | 15813 | 99.29 | 798 | 780 | 151.4 |
| B | 14 | 111 | 13782 | 85.88 | 798 | 780 | 151.4 |
| C | 0 | 79 | 1687011 | 9662.62 | 752 | 757 | 174.5 |
| C | 14 | 238 | 115610 | 658.13 | 752 | 757 | 174.5 |
| C | 3 | 233 | 48856 | 275.62 | 752 | 757 | 174.5 |
| D | 7 | 238 | 255899 | 1363.75 | 764 | 740 | 187.1 |
| D | 5 | 222 | 150779 | 801.91 | 764 | 740 | 187.1 |
| D | 13 | 189 | 109916 | 583.51 | 764 | 740 | 187.1 |
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 |  |