Observation information
- date-obs: 2018-10-02
- time-obs: 04:18:10.597700000
- date-end: 2018-10-02
- time-end: 06:24:54.593200000
- obs_id: A05_072T05_9000002394
- exposure: 2835.02733892
- sourceid: NGC 6809
- observer: annapurni
- ra_pnt: 294.9988
- dec_pnt: -30.96475
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_072T05_9000002394_16283cztM0_level2.evt
| modeM0/AS1A05_072T05_9000002394_16283cztM0_level2_quad_clean.evt
|
| Size (bytes) | 481,334,400 | 68,353,920 |
| Size | 459.0 MB
| 65.2 MB
|
| Events in quadrant A | 3,486,151 | 406,050 |
| Events in quadrant B | 3,670,848 | 418,003 |
| Events in quadrant C | 3,454,423 | 414,362 |
| Events in quadrant D | 3,549,214 | 402,356 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13967 | 3 |
| B | 0 | 14802 | 2 |
| C | 0 | 13958 | 2 |
| D | 0 | 14237 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6139 | 88 | 1.433458% |
| B | 6139 | 86 | 1.400880% |
| C | 6139 | 103 | 1.677798% |
| D | 6139 | 85 | 1.384590% |
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 | 7505 | 6141 | 33 | 33 | 0.44% | 0.54% |  |
| B | 7505 | 6141 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7505 | 6141 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7505 | 6141 | 33 | 33 | 0.44% | 0.54% |  |
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 | 15 | 174 | 119369 | 706.7 | 852 | 840 | 167.7 |
| A | 9 | 143 | 90922 | 537.09 | 852 | 840 | 167.7 |
| A | 0 | 226 | 7396 | 39.09 | 852 | 840 | 167.7 |
| B | 0 | 189 | 195039 | 1213.89 | 859 | 841 | 160.0 |
| B | 0 | 198 | 45661 | 280.16 | 859 | 841 | 160.0 |
| B | 15 | 35 | 38244 | 233.8 | 859 | 841 | 160.0 |
| C | 14 | 238 | 131351 | 689.5 | 831 | 840 | 189.3 |
| C | 3 | 233 | 73710 | 384.98 | 831 | 840 | 189.3 |
| C | 0 | 207 | 8974 | 42.97 | 831 | 840 | 189.3 |
| D | 1 | 52 | 235705 | 1154.43 | 840 | 819 | 203.5 |
| D | 10 | 70 | 105344 | 513.72 | 840 | 819 | 203.5 |
| D | 13 | 104 | 28938 | 138.2 | 840 | 819 | 203.5 |
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 |  |