Observation information
- date-obs: 2021-02-02
- time-obs: 16:38:30.982200000
- date-end: 2021-02-02
- time-end: 19:06:42.981600000
- obs_id: A10_048T07_9000004148
- exposure: 4330.94652705
- 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_9000004148_28931cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004148_28931cztM0_level2_quad_clean.evt
|
| Size (bytes) | 543,130,560 | 89,343,360 |
| Size | 518.0 MB
| 85.2 MB
|
| Events in quadrant A | 3,410,470 | 562,491 |
| Events in quadrant B | 3,489,085 | 577,977 |
| Events in quadrant C | 4,181,281 | 545,784 |
| Events in quadrant D | 4,900,164 | 538,770 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14623 | 2 |
| B | 0 | 14805 | 2 |
| C | 0 | 17111 | 2 |
| D | 0 | 19268 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6897 | 61 | 0.884443% |
| B | 6897 | 72 | 1.043932% |
| C | 6897 | 244 | 3.537770% |
| D | 6898 | 332 | 4.812989% |
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 | 8892 | 6900 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8892 | 6900 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8892 | 6900 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8893 | 6901 | 193 | 193 | 2.17% | 2.80% |  |
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 | 11721 | 61.27 | 881 | 863 | 177.2 |
| A | 3 | 137 | 8794 | 44.76 | 881 | 863 | 177.2 |
| A | 0 | 226 | 7522 | 37.58 | 881 | 863 | 177.2 |
| B | 12 | 111 | 20790 | 117.58 | 881 | 859 | 169.5 |
| B | 10 | 245 | 19663 | 110.93 | 881 | 859 | 169.5 |
| B | 11 | 111 | 19120 | 107.72 | 881 | 859 | 169.5 |
| C | 3 | 233 | 603362 | 3069.6 | 846 | 855 | 196.3 |
| C | 14 | 238 | 183349 | 929.76 | 846 | 855 | 196.3 |
| C | 14 | 254 | 68451 | 344.38 | 846 | 855 | 196.3 |
| D | 8 | 195 | 1259050 | 6157.15 | 849 | 827 | 204.4 |
| D | 1 | 52 | 363207 | 1773.32 | 849 | 827 | 204.4 |
| D | 12 | 79 | 37903 | 181.43 | 849 | 827 | 204.4 |
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 |  |