Observation information
- date-obs: 2021-02-20
- time-obs: 11:39:34.897500000
- date-end: 2021-02-20
- time-end: 13:47:26.900800000
- obs_id: A10_048T07_9000004188
- exposure: 2925.00418971
- 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_29195cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004188_29195cztM0_level2_quad_clean.evt
|
| Size (bytes) | 615,968,640 | 71,611,200 |
| Size | 587.4 MB
| 68.3 MB
|
| Events in quadrant A | 3,574,781 | 441,048 |
| Events in quadrant B | 3,789,923 | 447,013 |
| Events in quadrant C | 5,344,965 | 424,731 |
| Events in quadrant D | 5,518,365 | 414,902 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14840 | 2 |
| B | 0 | 15544 | 2 |
| C | 0 | 20550 | 2 |
| D | 0 | 20823 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6314 | 90 | 1.425404% |
| B | 6313 | 114 | 1.805798% |
| C | 6313 | 333 | 5.274830% |
| D | 6313 | 361 | 5.718359% |
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 | 7609 | 6315 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7608 | 6314 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7608 | 6314 | 30 | 30 | 0.39% | 0.48% |  |
| D | 7608 | 6314 | 261 | 261 | 3.43% | 4.13% |  |
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 | 11680 | 58.75 | 927 | 912 | 183.3 |
| A | 3 | 137 | 8202 | 39.77 | 927 | 912 | 183.3 |
| A | 0 | 226 | 7969 | 38.5 | 927 | 912 | 183.3 |
| B | 0 | 183 | 167388 | 983.54 | 913 | 895 | 169.3 |
| B | 12 | 111 | 19726 | 111.24 | 913 | 895 | 169.3 |
| B | 11 | 111 | 18445 | 103.67 | 913 | 895 | 169.3 |
| C | 3 | 233 | 1720474 | 8402.87 | 888 | 898 | 204.6 |
| C | 14 | 238 | 148125 | 719.44 | 888 | 898 | 204.6 |
| C | 2 | 114 | 15264 | 70.2 | 888 | 898 | 204.6 |
| D | 1 | 52 | 1246925 | 6014.79 | 894 | 878 | 207.2 |
| D | 8 | 195 | 608982 | 2935.38 | 894 | 878 | 207.2 |
| D | 13 | 104 | 186939 | 898.13 | 894 | 878 | 207.2 |
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 |  |