Observation information
- date-obs: 2021-02-19
- time-obs: 17:04:37.876100000
- date-end: 2021-02-20
- time-end: 16:07:31.905500000
- obs_id: A10_048T07_9000004188
- exposure: 44591.2233798
- 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_9000004188cztM0_level2_bc.evt
| modeM0/AS1A10_048T07_9000004188cztM0_level2_quad_clean.evt
|
| Size (bytes) | 3,758,731,200 | 960,485,760 |
| Size | 3.5 GB
| 916.0 MB
|
| Events in quadrant A | 17,000,539 | 6,154,811 |
| Events in quadrant B | 17,379,847 | 6,279,472 |
| Events in quadrant C | 40,745,087 | 5,911,651 |
| Events in quadrant D | 33,791,300 | 5,782,754 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 105 | 0 |
| B | 0 | 105 | 0 |
| C | 0 | 105 | 0 |
| D | 0 | 105 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1474 | 0 |
| B | 0 | 1474 | 0 |
| C | 0 | 1474 | 0 |
| D | 0 | 1474 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154977 | 0 |
| B | 0 | 159927 | 0 |
| C | 0 | 238085 | 0 |
| D | 0 | 217688 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 72375 | 943 | 1.302936% |
| B | 72375 | 1400 | 1.934370% |
| C | 72375 | 5221 | 7.213817% |
| D | 72374 | 4308 | 5.952414% |
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 | 82975 | 72377 | 0 | 0 | 0.00% | 0.00% |  |
| B | 82975 | 72376 | 5 | 5 | 0.01% | 0.01% |  |
| C | 82975 | 72376 | 264 | 264 | 0.32% | 0.36% |  |
| D | 82975 | 72372 | 563 | 563 | 0.68% | 0.78% |  |
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 | 113 | 1281921 | 1481.59 | 4046 | 3972 | 862.5 |
| A | 13 | 254 | 126928 | 142.55 | 4046 | 3972 | 862.5 |
| A | 15 | 174 | 84449 | 93.3 | 4046 | 3972 | 862.5 |
| B | 0 | 183 | 1028204 | 1349.82 | 4087 | 4000 | 758.8 |
| B | 0 | 190 | 172860 | 222.54 | 4087 | 4000 | 758.8 |
| B | 10 | 245 | 145578 | 186.59 | 4087 | 4000 | 758.8 |
| C | 3 | 233 | 25711247 | 28393.12 | 3872 | 3868 | 905.4 |
| C | 2 | 114 | 137650 | 147.76 | 3872 | 3868 | 905.4 |
| C | 13 | 61 | 21787 | 19.79 | 3872 | 3868 | 905.4 |
| D | 1 | 52 | 11250803 | 12732.2 | 3917 | 3801 | 883.4 |
| D | 8 | 195 | 5153092 | 5829.27 | 3917 | 3801 | 883.4 |
| D | 13 | 153 | 1167607 | 1317.49 | 3917 | 3801 | 883.4 |
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 |  |