Observation information
- date-obs: 2018-08-17
- time-obs: 17:07:17.137200000
- date-end: 2018-08-18
- time-end: 08:56:52.065400000
- obs_id: G08_031T01_9000002314
- exposure: 18031.9739352
- sourceid: NGC 253
- observer: askpati
- ra_pnt: 11.8875
- dec_pnt: -25.28833
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_031T01_9000002314cztM0_level2.fits
| modeM0/AS1G08_031T01_9000002314cztM0_level2_quad_clean.evt
|
| Size (bytes) | 478,825,920 | 342,725,760 |
| Size | 456.6 MB
| 326.8 MB
|
| Events in quadrant A | 2,957,024 | 1,833,830 |
| Events in quadrant B | 2,804,844 | 1,835,681 |
| Events in quadrant C | 2,879,198 | 1,758,677 |
| Events in quadrant D | 2,546,354 | 1,634,781 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 0 |
| B | 0 | 88 | 0 |
| C | 0 | 88 | 0 |
| D | 0 | 88 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100106 | 0 |
| B | 0 | 105505 | 0 |
| C | 0 | 100061 | 0 |
| D | 0 | 102334 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 982 | 0 |
| B | 0 | 982 | 0 |
| C | 0 | 982 | 0 |
| D | 0 | 982 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 48306 | 300 | 0.621041% |
| B | 48306 | 486 | 1.006086% |
| C | 48306 | 527 | 1.090962% |
| D | 48306 | 429 | 0.888088% |
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 | 56976 | 48301 | 0 | 0 | 0.00% | 0.00% |  |
| B | 56976 | 48296 | 0 | 0 | 0.00% | 0.00% |  |
| C | 56976 | 48298 | 0 | 0 | 0.00% | 0.00% |  |
| D | 56976 | 48292 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 2874 | 11.23 | 771 | 722 | 191.6 |
| A | 7 | 110 | 2322 | 8.35 | 771 | 722 | 191.6 |
| A | 9 | 19 | 2144 | 7.42 | 771 | 722 | 191.6 |
| B | 2 | 9 | 2303 | 11.03 | 740 | 706 | 144.8 |
| B | 2 | 8 | 1972 | 8.74 | 740 | 706 | 144.8 |
| B | 3 | 17 | 1869 | 8.03 | 740 | 706 | 144.8 |
| C | 12 | 241 | 2017 | 6.69 | 760 | 710 | 195.5 |
| C | 3 | 126 | 2009 | 6.65 | 760 | 710 | 195.5 |
| C | 2 | 191 | 1975 | 6.47 | 760 | 710 | 195.5 |
| D | 6 | 67 | 1811 | 6.0 | 726 | 662 | 191.5 |
| D | 3 | 14 | 1782 | 5.85 | 726 | 662 | 191.5 |
| D | 7 | 3 | 1781 | 5.84 | 726 | 662 | 191.5 |
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 |  |