Observation information
- date-obs: 2021-02-19
- time-obs: 19:49:34.878300000
- date-end: 2021-02-19
- time-end: 22:05:34.879500000
- obs_id: A10_048T07_9000004188
- exposure: 5005.20247348
- 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_29185cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004188_29185cztM0_level2_quad_clean.evt
|
| Size (bytes) | 676,601,280 | 102,435,840 |
| Size | 645.3 MB
| 97.7 MB
|
| Events in quadrant A | 3,486,350 | 664,525 |
| Events in quadrant B | 3,863,047 | 680,621 |
| Events in quadrant C | 8,100,886 | 622,940 |
| Events in quadrant D | 4,558,113 | 636,708 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14928 | 2 |
| B | 0 | 16137 | 2 |
| C | 0 | 29133 | 2 |
| D | 0 | 18399 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7147 | 49 | 0.685602% |
| B | 7147 | 164 | 2.294669% |
| C | 7147 | 761 | 10.647824% |
| D | 7146 | 102 | 1.427372% |
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 | 7647 | 7148 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7647 | 7147 | 15 | 15 | 0.20% | 0.21% |  |
| C | 7647 | 7148 | 338 | 338 | 4.42% | 4.73% |  |
| D | 7646 | 7147 | 41 | 41 | 0.54% | 0.57% |  |
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 | 13406 | 69.05 | 901 | 884 | 181.3 |
| A | 15 | 174 | 9853 | 49.46 | 901 | 884 | 181.3 |
| A | 3 | 137 | 9000 | 44.75 | 901 | 884 | 181.3 |
| B | 0 | 183 | 202882 | 1160.32 | 900 | 874 | 174.1 |
| B | 0 | 190 | 48215 | 271.92 | 900 | 874 | 174.1 |
| B | 5 | 255 | 43987 | 247.64 | 900 | 874 | 174.1 |
| C | 3 | 233 | 4622134 | 22990.72 | 854 | 861 | 201.0 |
| C | 14 | 238 | 133600 | 660.37 | 854 | 861 | 201.0 |
| C | 2 | 114 | 16572 | 78.16 | 854 | 861 | 201.0 |
| D | 1 | 52 | 633681 | 3000.55 | 873 | 849 | 210.9 |
| D | 8 | 195 | 476330 | 2254.48 | 873 | 849 | 210.9 |
| D | 13 | 153 | 78009 | 365.85 | 873 | 849 | 210.9 |
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 |  |