Observation information
- date-obs: 2021-01-18
- time-obs: 02:27:55.317400000
- date-end: 2021-01-18
- time-end: 04:43:04.028600000
- obs_id: A10_021T08_9000004118
- exposure: 4378.26187919
- sourceid: NGC 4689
- observer: rosolowsky
- ra_pnt: 191.8
- dec_pnt: 13.90036
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_021T08_9000004118_28701cztM0_level2.evt
| modeM0/AS1A10_021T08_9000004118_28701cztM0_level2_quad_clean.evt
|
| Size (bytes) | 471,954,240 | 99,587,520 |
| Size | 450.1 MB
| 95.0 MB
|
| Events in quadrant A | 3,271,189 | 646,883 |
| Events in quadrant B | 3,377,127 | 664,569 |
| Events in quadrant C | 3,327,511 | 630,839 |
| Events in quadrant D | 3,865,540 | 609,931 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13788 | 2 |
| B | 0 | 14059 | 2 |
| C | 0 | 13947 | 2 |
| D | 0 | 15793 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6650 | 31 | 0.466165% |
| B | 6650 | 39 | 0.586466% |
| C | 6650 | 69 | 1.037594% |
| D | 6650 | 29 | 0.436090% |
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 | 7840 | 6651 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7840 | 6650 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7840 | 6651 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7840 | 6650 | 11 | 11 | 0.14% | 0.17% |  |
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 | 239 | 10728 | 58.69 | 844 | 826 | 168.7 |
| A | 13 | 254 | 10673 | 58.36 | 844 | 826 | 168.7 |
| A | 3 | 137 | 7926 | 42.08 | 844 | 826 | 168.7 |
| B | 10 | 245 | 67278 | 420.16 | 840 | 820 | 158.2 |
| B | 12 | 111 | 19223 | 116.34 | 840 | 820 | 158.2 |
| B | 11 | 111 | 17607 | 106.13 | 840 | 820 | 158.2 |
| C | 14 | 238 | 138019 | 727.64 | 810 | 816 | 188.6 |
| C | 3 | 233 | 12290 | 60.85 | 810 | 816 | 188.6 |
| C | 10 | 22 | 11869 | 58.62 | 810 | 816 | 188.6 |
| D | 8 | 195 | 325329 | 1693.17 | 812 | 794 | 191.7 |
| D | 1 | 52 | 204302 | 1061.74 | 812 | 794 | 191.7 |
| D | 13 | 104 | 186978 | 971.36 | 812 | 794 | 191.7 |
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 |  |