Observation information
- date-obs: 2017-05-15
- time-obs: 09:33:15.701100000
- date-end: 2017-05-15
- time-end: 11:57:21.075600000
- obs_id: A03_135T01_9000001226
- exposure: 4175.18751562
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08812cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08812cztM0_level2_quad_clean.evt
|
| Size (bytes) | 488,859,840 | 85,432,320 |
| Size | 466.2 MB
| 81.5 MB
|
| Events in quadrant A | 3,681,475 | 541,624 |
| Events in quadrant B | 3,519,510 | 543,567 |
| Events in quadrant C | 3,153,183 | 530,409 |
| Events in quadrant D | 4,007,309 | 515,745 |
Level1 data integrity
| 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 | 15009 | 3 |
| B | 0 | 14568 | 2 |
| C | 0 | 13617 | 2 |
| D | 0 | 16225 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6529 | 135 | 2.067698% |
| B | 6529 | 154 | 2.358707% |
| C | 6529 | 80 | 1.225302% |
| D | 6529 | 133 | 2.037065% |
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 | 7654 | 6529 | 21 | 21 | 0.27% | 0.32% |  |
| B | 7654 | 6529 | 31 | 31 | 0.41% | 0.47% |  |
| C | 7654 | 6529 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7654 | 6529 | 28 | 28 | 0.37% | 0.43% |  |
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 | 400386 | 2339.71 | 842 | 825 | 170.8 |
| A | 13 | 248 | 20201 | 113.46 | 842 | 825 | 170.8 |
| A | 15 | 174 | 17297 | 96.45 | 842 | 825 | 170.8 |
| B | 10 | 16 | 244014 | 1541.28 | 833 | 815 | 157.8 |
| B | 12 | 111 | 17002 | 102.59 | 833 | 815 | 157.8 |
| B | 11 | 111 | 14099 | 84.19 | 833 | 815 | 157.8 |
| C | 13 | 61 | 6231 | 29.02 | 808 | 814 | 186.6 |
| C | 8 | 222 | 3296 | 13.3 | 808 | 814 | 186.6 |
| C | 3 | 202 | 2107 | 6.93 | 808 | 814 | 186.6 |
| D | 2 | 16 | 556230 | 2860.39 | 808 | 790 | 194.2 |
| D | 2 | 152 | 178020 | 912.69 | 808 | 790 | 194.2 |
| D | 12 | 221 | 81008 | 413.1 | 808 | 790 | 194.2 |
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 |  |