Observation information
- date-obs: 2021-02-20
- time-obs: 13:06:14.899900000
- date-end: 2021-02-20
- time-end: 15:31:01.904300000
- obs_id: A10_048T07_9000004188
- exposure: 3449.51048264
- sourceid: NGC 4394
- observer: chayan
- ra_pnt: 186.4817
- dec_pnt: 18.21389
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T07_9000004188_29196cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004188_29196cztM0_level2_quad_clean.evt
|
| Size (bytes) | 570,631,680 | 84,087,360 |
| Size | 544.2 MB
| 80.2 MB
|
| Events in quadrant A | 3,537,597 | 533,652 |
| Events in quadrant B | 3,843,052 | 542,058 |
| Events in quadrant C | 4,456,191 | 524,202 |
| Events in quadrant D | 5,022,009 | 510,250 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 25 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14653 | 2 |
| B | 0 | 15701 | 2 |
| C | 0 | 17678 | 2 |
| D | 0 | 19304 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6253 | 108 | 1.727171% |
| B | 6253 | 161 | 2.574764% |
| C | 6253 | 308 | 4.925636% |
| D | 6253 | 294 | 4.701743% |
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 | 7583 | 6254 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7583 | 6254 | 8 | 8 | 0.11% | 0.13% |  |
| C | 7583 | 6254 | 31 | 31 | 0.41% | 0.50% |  |
| D | 7583 | 6254 | 127 | 127 | 1.67% | 2.03% |  |
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 | 13 | 254 | 11936 | 61.46 | 917 | 903 | 179.5 |
| A | 3 | 137 | 8185 | 40.56 | 917 | 903 | 179.5 |
| A | 0 | 226 | 7861 | 38.76 | 917 | 903 | 179.5 |
| B | 0 | 183 | 197521 | 1174.06 | 906 | 889 | 167.5 |
| B | 3 | 209 | 26635 | 153.72 | 906 | 889 | 167.5 |
| B | 10 | 245 | 26159 | 150.88 | 906 | 889 | 167.5 |
| C | 3 | 233 | 826731 | 4060.6 | 889 | 898 | 203.4 |
| C | 14 | 238 | 146534 | 716.09 | 889 | 898 | 203.4 |
| C | 2 | 114 | 14992 | 69.3 | 889 | 898 | 203.4 |
| D | 1 | 52 | 947048 | 4472.97 | 891 | 871 | 211.5 |
| D | 8 | 195 | 579250 | 2734.24 | 891 | 871 | 211.5 |
| D | 13 | 153 | 81923 | 383.17 | 891 | 871 | 211.5 |
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 |  |