Observation information
- date-obs: 2021-02-18
- time-obs: 21:05:47.888700000
- date-end: 2021-02-18
- time-end: 23:31:05.886800000
- obs_id: A10_099T01_9000004184
- exposure: 5267.48568803
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_099T01_9000004184_29171cztM0_level2.evt
| modeM0/AS1A10_099T01_9000004184_29171cztM0_level2_quad_clean.evt
|
| Size (bytes) | 588,600,000 | 107,352,000 |
| Size | 561.3 MB
| 102.4 MB
|
| Events in quadrant A | 3,692,665 | 692,071 |
| Events in quadrant B | 3,951,742 | 704,603 |
| Events in quadrant C | 3,734,181 | 673,536 |
| Events in quadrant D | 5,929,945 | 650,392 |
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 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15998 | 4 |
| B | 0 | 16697 | 3 |
| C | 0 | 15890 | 3 |
| D | 0 | 22844 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7622 | 49 | 0.642876% |
| B | 7623 | 119 | 1.561065% |
| C | 7623 | 123 | 1.613538% |
| D | 7623 | 602 | 7.897153% |
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 | 8717 | 7625 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8718 | 7626 | 8 | 8 | 0.09% | 0.10% |  |
| C | 8718 | 7626 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8718 | 7626 | 389 | 389 | 4.46% | 5.10% |  |
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 | 12 | 16 | 29378 | 147.72 | 949 | 931 | 192.6 |
| A | 13 | 254 | 13730 | 66.46 | 949 | 931 | 192.6 |
| A | 12 | 194 | 11048 | 52.53 | 949 | 931 | 192.6 |
| B | 10 | 246 | 102124 | 554.92 | 946 | 920 | 182.4 |
| B | 0 | 183 | 97011 | 526.89 | 946 | 920 | 182.4 |
| B | 12 | 111 | 23065 | 121.42 | 946 | 920 | 182.4 |
| C | 14 | 238 | 144817 | 673.84 | 910 | 915 | 213.6 |
| C | 3 | 233 | 26276 | 118.76 | 910 | 915 | 213.6 |
| C | 2 | 114 | 17887 | 79.47 | 910 | 915 | 213.6 |
| D | 1 | 52 | 2108769 | 9904.16 | 889 | 866 | 212.8 |
| D | 8 | 195 | 316634 | 1483.66 | 889 | 866 | 212.8 |
| D | 13 | 104 | 64863 | 300.7 | 889 | 866 | 212.8 |
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 |  |