Observation information
- date-obs: 2018-01-13
- time-obs: 12:54:53.848700000
- date-end: 2018-01-13
- time-end: 15:16:49.091000000
- obs_id: A04_023T01_9000001842
- exposure: 3954.73419213
- sourceid: NGC3801
- observer: hota
- ra_pnt: 175.0704
- dec_pnt: 17.72791
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_023T01_9000001842_12410cztM0_level2.evt
| modeM0/AS1A04_023T01_9000001842_12410cztM0_level2_quad_clean.evt
|
| Size (bytes) | 599,987,520 | 81,426,240 |
| Size | 572.2 MB
| 77.7 MB
|
| Events in quadrant A | 4,341,917 | 484,335 |
| Events in quadrant B | 4,610,452 | 482,016 |
| Events in quadrant C | 3,728,027 | 485,529 |
| Events in quadrant D | 4,955,233 | 465,021 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 164 | 0 |
| B | 0 | 164 | 0 |
| C | 0 | 164 | 0 |
| D | 0 | 164 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17823 | 3 |
| B | 0 | 18767 | 2 |
| C | 0 | 16475 | 2 |
| D | 0 | 20123 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7881 | 217 | 2.753458% |
| B | 7881 | 370 | 4.694836% |
| C | 7881 | 160 | 2.030199% |
| D | 7881 | 402 | 5.100876% |
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 | 8517 | 7882 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8517 | 7882 | 119 | 119 | 1.40% | 1.51% |  |
| C | 8517 | 7882 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8517 | 7882 | 118 | 118 | 1.39% | 1.50% |  |
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 | 1 | 162 | 146162 | 720.22 | 974 | 952 | 201.6 |
| A | 13 | 251 | 123139 | 606.03 | 974 | 952 | 201.6 |
| A | 1 | 178 | 76016 | 372.31 | 974 | 952 | 201.6 |
| B | 4 | 239 | 379514 | 2025.62 | 956 | 931 | 186.9 |
| B | 3 | 64 | 289120 | 1541.96 | 956 | 931 | 186.9 |
| B | 3 | 209 | 64182 | 338.43 | 956 | 931 | 186.9 |
| C | 15 | 208 | 23609 | 102.11 | 948 | 952 | 221.9 |
| C | 13 | 61 | 6864 | 26.64 | 948 | 952 | 221.9 |
| C | 8 | 128 | 4388 | 15.49 | 948 | 952 | 221.9 |
| D | 1 | 52 | 966902 | 4240.37 | 935 | 908 | 227.8 |
| D | 10 | 157 | 136354 | 594.56 | 935 | 908 | 227.8 |
| D | 13 | 104 | 102779 | 447.18 | 935 | 908 | 227.8 |
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 |  |