Observation information
- date-obs: 2018-08-17
- time-obs: 17:07:17.137200000
- date-end: 2018-08-17
- time-end: 18:22:37.085400000
- obs_id: G08_031T01_9000002314
- exposure: 2263.86292906
- 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_9000002314_15609cztM0_level2.evt
| modeM0/AS1G08_031T01_9000002314_15609cztM0_level2_quad_clean.evt
|
| Size (bytes) | 281,730,240 | 45,662,400 |
| Size | 268.7 MB
| 43.5 MB
|
| Events in quadrant A | 1,975,058 | 276,592 |
| Events in quadrant B | 2,275,375 | 279,199 |
| Events in quadrant C | 2,034,760 | 268,881 |
| Events in quadrant D | 1,965,683 | 267,164 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8456 | 2 |
| B | 0 | 9404 | 1 |
| C | 0 | 8593 | 1 |
| D | 0 | 8554 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 0 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4120 | 23 | 0.558252% |
| B | 4120 | 47 | 1.140777% |
| C | 4120 | 62 | 1.504854% |
| D | 4120 | 17 | 0.412621% |
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 | 4521 | 4122 | 0 | 0 | 0.00% | 0.00% |  |
| B | 4521 | 4122 | 4 | 4 | 0.09% | 0.10% |  |
| C | 4521 | 4122 | 4 | 4 | 0.09% | 0.10% |  |
| D | 4521 | 4122 | 6 | 6 | 0.13% | 0.15% |  |
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 | 226 | 4470 | 37.2 | 510 | 498 | 106.8 |
| A | 12 | 194 | 3919 | 32.04 | 510 | 498 | 106.8 |
| A | 9 | 143 | 3667 | 29.68 | 510 | 498 | 106.8 |
| B | 4 | 251 | 200866 | 2026.1 | 506 | 493 | 98.9 |
| B | 4 | 173 | 23679 | 234.45 | 506 | 493 | 98.9 |
| B | 0 | 189 | 18510 | 182.18 | 506 | 493 | 98.9 |
| C | 14 | 238 | 74649 | 637.39 | 486 | 488 | 116.4 |
| C | 10 | 22 | 33063 | 279.97 | 486 | 488 | 116.4 |
| C | 7 | 247 | 13877 | 115.07 | 486 | 488 | 116.4 |
| D | 2 | 152 | 33563 | 269.44 | 499 | 484 | 122.8 |
| D | 2 | 234 | 19227 | 152.67 | 499 | 484 | 122.8 |
| D | 2 | 120 | 13342 | 104.73 | 499 | 484 | 122.8 |
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 |  |