Observation information
- date-obs: 2018-04-21
- time-obs: 02:04:55.145700000
- date-end: 2018-04-21
- time-end: 04:17:58.140300000
- obs_id: A04_199T01_9000002040
- exposure: 3047.60593486
- sourceid: OJ 287
- observer: goputifr
- ra_pnt: 133.7036
- dec_pnt: 20.10851
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_199T01_9000002040_13854cztM0_level2.evt
| modeM0/AS1A04_199T01_9000002040_13854cztM0_level2_quad_clean.evt
|
| Size (bytes) | 497,424,960 | 68,382,720 |
| Size | 474.4 MB
| 65.2 MB
|
| Events in quadrant A | 3,361,208 | 406,371 |
| Events in quadrant B | 3,804,895 | 396,728 |
| Events in quadrant C | 3,301,964 | 400,605 |
| Events in quadrant D | 4,127,045 | 384,959 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14415 | 3 |
| B | 0 | 15669 | 2 |
| C | 0 | 14236 | 2 |
| D | 0 | 16918 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6915 | 78 | 1.127983% |
| B | 6915 | 233 | 3.369487% |
| C | 6915 | 38 | 0.549530% |
| D | 6915 | 89 | 1.287057% |
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 | 7841 | 6916 | 17 | 17 | 0.22% | 0.25% |  |
| B | 7841 | 6916 | 161 | 161 | 2.05% | 2.33% |  |
| C | 7841 | 6916 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7841 | 6916 | 50 | 50 | 0.64% | 0.72% |  |
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 | 83242 | 480.38 | 843 | 824 | 171.6 |
| A | 8 | 15 | 20801 | 116.44 | 843 | 824 | 171.6 |
| A | 0 | 226 | 7577 | 39.36 | 843 | 824 | 171.6 |
| B | 3 | 64 | 444641 | 2784.58 | 832 | 811 | 159.4 |
| B | 3 | 209 | 46095 | 284.11 | 832 | 811 | 159.4 |
| B | 0 | 219 | 37796 | 232.04 | 832 | 811 | 159.4 |
| C | 3 | 233 | 95933 | 495.6 | 820 | 824 | 191.9 |
| C | 6 | 253 | 8279 | 38.85 | 820 | 824 | 191.9 |
| C | 13 | 61 | 6044 | 27.2 | 820 | 824 | 191.9 |
| D | 1 | 52 | 347349 | 1620.08 | 805 | 789 | 213.9 |
| D | 10 | 157 | 239893 | 1117.75 | 805 | 789 | 213.9 |
| D | 13 | 122 | 188393 | 877.0 | 805 | 789 | 213.9 |
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 |  |