Observation information
- date-obs: 2017-05-15
- time-obs: 07:59:55.676400000
- date-end: 2017-05-15
- time-end: 10:12:59.071400000
- obs_id: A03_135T01_9000001226
- exposure: 3725.60244247
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08810cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08810cztM0_level2_quad_clean.evt
|
| Size (bytes) | 467,847,360 | 75,297,600 |
| Size | 446.2 MB
| 71.8 MB
|
| Events in quadrant A | 3,365,303 | 461,963 |
| Events in quadrant B | 3,784,734 | 458,868 |
| Events in quadrant C | 3,087,635 | 454,036 |
| Events in quadrant D | 3,480,247 | 442,406 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14085 | 3 |
| B | 0 | 15498 | 2 |
| C | 0 | 13575 | 2 |
| D | 0 | 14702 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6632 | 61 | 0.919783% |
| B | 6632 | 204 | 3.075995% |
| C | 6632 | 35 | 0.527744% |
| D | 6632 | 108 | 1.628468% |
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 | 7687 | 6632 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7687 | 6632 | 106 | 106 | 1.38% | 1.60% |  |
| C | 7687 | 6632 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7687 | 6632 | 56 | 56 | 0.73% | 0.84% |  |
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 | 5 | 204549 | 1225.7 | 819 | 802 | 166.2 |
| A | 13 | 251 | 13042 | 73.63 | 819 | 802 | 166.2 |
| A | 0 | 226 | 7593 | 40.85 | 819 | 802 | 166.2 |
| B | 10 | 16 | 609666 | 3966.92 | 810 | 791 | 153.5 |
| B | 12 | 111 | 16929 | 105.14 | 810 | 791 | 153.5 |
| B | 11 | 111 | 13864 | 85.17 | 810 | 791 | 153.5 |
| C | 9 | 54 | 7506 | 36.63 | 789 | 794 | 183.2 |
| C | 13 | 61 | 5893 | 27.83 | 789 | 794 | 183.2 |
| C | 8 | 222 | 2749 | 10.67 | 789 | 794 | 183.2 |
| D | 7 | 71 | 203093 | 1062.79 | 783 | 763 | 190.4 |
| D | 2 | 152 | 198555 | 1038.96 | 783 | 763 | 190.4 |
| D | 5 | 233 | 50459 | 261.04 | 783 | 763 | 190.4 |
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 |  |