Observation information
- date-obs: 2020-06-22
- time-obs: 02:06:19.567200000
- date-end: 2020-06-22
- time-end: 04:18:53.562900000
- obs_id: A09_043T02_9000003726
- exposure: 2870.67613578
- sourceid: NGC 3351
- observer: chayan
- ra_pnt: 160.9904
- dec_pnt: 11.70381
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_043T02_9000003726_25592cztM0_level2.evt
| modeM0/AS1A09_043T02_9000003726_25592cztM0_level2_quad_clean.evt
|
| Size (bytes) | 689,420,160 | 70,315,200 |
| Size | 657.5 MB
| 67.1 MB
|
| Events in quadrant A | 5,750,546 | 423,089 |
| Events in quadrant B | 3,669,900 | 457,324 |
| Events in quadrant C | 3,487,448 | 420,478 |
| Events in quadrant D | 7,543,344 | 385,511 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21377 | 0 |
| B | 0 | 14678 | 0 |
| C | 0 | 13974 | 0 |
| D | 0 | 26941 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6340 | 782 | 12.334385% |
| B | 6340 | 164 | 2.586751% |
| C | 6340 | 167 | 2.634069% |
| D | 6339 | 971 | 15.317873% |
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 | 7610 | 6341 | 479 | 479 | 6.29% | 7.55% |  |
| B | 7610 | 6341 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7610 | 6341 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7609 | 6340 | 733 | 733 | 9.63% | 11.56% |  |
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 | 8 | 192 | 1896133 | 10547.54 | 903 | 889 | 179.7 |
| A | 6 | 16 | 344593 | 1912.8 | 903 | 889 | 179.7 |
| A | 9 | 130 | 32125 | 173.84 | 903 | 889 | 179.7 |
| B | 0 | 219 | 47376 | 271.38 | 917 | 899 | 171.3 |
| B | 12 | 111 | 20170 | 112.52 | 917 | 899 | 171.3 |
| B | 11 | 111 | 17804 | 98.71 | 917 | 899 | 171.3 |
| C | 14 | 238 | 139311 | 693.47 | 857 | 864 | 199.6 |
| C | 3 | 233 | 6218 | 26.82 | 857 | 864 | 199.6 |
| C | 13 | 61 | 5856 | 25.0 | 857 | 864 | 199.6 |
| D | 1 | 52 | 2229658 | 11154.73 | 823 | 799 | 199.8 |
| D | 9 | 35 | 1074190 | 5371.98 | 823 | 799 | 199.8 |
| D | 8 | 195 | 723608 | 3617.43 | 823 | 799 | 199.8 |
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 |  |