Observation information
- date-obs: 2017-04-04
- time-obs: 06:08:15.340600000
- date-end: 2017-04-04
- time-end: 08:17:00.335800000
- obs_id: A03_103T01_9000001132
- exposure: 6472.64685482
- sourceid: NGC 2808
- observer: sarita
- ra_pnt: 138.0128
- dec_pnt: -64.83842
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_103T01_9000001132_08202cztM0_level2.evt
| modeM0/AS1A03_103T01_9000001132_08202cztM0_level2_quad_clean.evt
|
| Size (bytes) | 521,216,640 | 121,740,480 |
| Size | 497.1 MB
| 116.1 MB
|
| Events in quadrant A | 3,138,042 | 842,040 |
| Events in quadrant B | 3,222,161 | 856,210 |
| Events in quadrant C | 3,063,222 | 836,792 |
| Events in quadrant D | 5,905,275 | 683,451 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13872 | 3 |
| B | 0 | 14019 | 2 |
| C | 0 | 13785 | 2 |
| D | 0 | 22481 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6717 | 85 | 1.265446% |
| B | 6717 | 87 | 1.295221% |
| C | 6717 | 56 | 0.833706% |
| D | 6717 | 1299 | 19.338991% |
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 | 7717 | 6717 | 19 | 19 | 0.25% | 0.28% |  |
| B | 7717 | 6717 | 10 | 10 | 0.13% | 0.15% |  |
| C | 7717 | 6717 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7717 | 6717 | 1161 | 1161 | 15.04% | 17.28% |  |
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 | 170 | 60914 | 369.59 | 796 | 778 | 162.7 |
| A | 0 | 226 | 7355 | 40.42 | 796 | 778 | 162.7 |
| A | 12 | 194 | 7231 | 39.66 | 796 | 778 | 162.7 |
| B | 4 | 81 | 50104 | 323.55 | 801 | 781 | 152.4 |
| B | 10 | 16 | 39119 | 251.49 | 801 | 781 | 152.4 |
| B | 0 | 214 | 17501 | 109.68 | 801 | 781 | 152.4 |
| C | 1 | 0 | 14225 | 74.72 | 781 | 784 | 179.9 |
| C | 13 | 61 | 6010 | 29.05 | 781 | 784 | 179.9 |
| C | 14 | 67 | 1989 | 6.7 | 781 | 784 | 179.9 |
| D | 1 | 52 | 3078280 | 18792.33 | 670 | 649 | 163.8 |
| D | 13 | 122 | 125931 | 764.98 | 670 | 649 | 163.8 |
| D | 12 | 233 | 92232 | 559.22 | 670 | 649 | 163.8 |
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 |  |