Observation information
- date-obs: 2019-08-20
- time-obs: 14:54:47.693100000
- date-end: 2019-08-20
- time-end: 17:09:03.686400000
- obs_id: A05_025T04_9000003110
- exposure: 3313.5084897
- sourceid: NGC 1851
- observer: pandey
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_025T04_9000003110_21055cztM0_level2.evt
| modeM0/AS1A05_025T04_9000003110_21055cztM0_level2_quad_clean.evt
|
| Size (bytes) | 531,996,480 | 70,859,520 |
| Size | 507.4 MB
| 67.6 MB
|
| Events in quadrant A | 3,206,271 | 431,922 |
| Events in quadrant B | 3,551,330 | 435,320 |
| Events in quadrant C | 3,211,881 | 414,433 |
| Events in quadrant D | 5,683,996 | 393,063 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| 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 | 13920 | 2 |
| B | 0 | 14749 | 2 |
| C | 0 | 13858 | 2 |
| D | 0 | 21387 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6755 | 53 | 0.784604% |
| B | 6755 | 70 | 1.036269% |
| C | 6755 | 75 | 1.110289% |
| D | 6755 | 636 | 9.415248% |
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 | 7740 | 6756 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7740 | 6756 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7740 | 6756 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7740 | 6756 | 529 | 529 | 6.83% | 7.83% |  |
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 | 254 | 8325 | 44.72 | 831 | 814 | 168.0 |
| A | 0 | 226 | 7324 | 38.76 | 831 | 814 | 168.0 |
| A | 12 | 96 | 6957 | 36.57 | 831 | 814 | 168.0 |
| B | 0 | 219 | 169212 | 1079.14 | 825 | 805 | 156.1 |
| B | 0 | 190 | 40637 | 255.24 | 825 | 805 | 156.1 |
| B | 7 | 220 | 29607 | 184.56 | 825 | 805 | 156.1 |
| C | 14 | 238 | 125729 | 678.95 | 788 | 792 | 184.0 |
| C | 3 | 9 | 10373 | 52.06 | 788 | 792 | 184.0 |
| C | 13 | 61 | 5560 | 25.91 | 788 | 792 | 184.0 |
| D | 1 | 52 | 2248264 | 12017.87 | 775 | 752 | 187.0 |
| D | 7 | 238 | 171396 | 912.47 | 775 | 752 | 187.0 |
| D | 12 | 233 | 168183 | 895.29 | 775 | 752 | 187.0 |
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 |  |