Observation information
- date-obs: 2019-08-20
- time-obs: 06:06:27.721900000
- date-end: 2019-08-20
- time-end: 19:08:59.680700000
- obs_id: A05_025T04_9000003110
- exposure: 21410.519628
- 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_9000003110cztM0_level2.fits
| modeM0/AS1A05_025T04_9000003110cztM0_level2_quad_clean.evt
|
| Size (bytes) | 395,821,440 | 380,675,520 |
| Size | 377.5 MB
| 363.0 MB
|
| Events in quadrant A | 2,408,206 | 2,273,159 |
| Events in quadrant B | 2,307,674 | 2,276,936 |
| Events in quadrant C | 2,362,498 | 2,152,582 |
| Events in quadrant D | 2,026,038 | 1,943,859 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52 | 0 |
| B | 0 | 52 | 0 |
| C | 0 | 52 | 0 |
| D | 0 | 52 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 852 | 0 |
| B | 0 | 852 | 0 |
| C | 0 | 852 | 0 |
| D | 0 | 852 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 86167 | 0 |
| B | 0 | 91465 | 0 |
| C | 0 | 85987 | 0 |
| D | 0 | 107457 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 41991 | 591 | 1.407444% |
| B | 41991 | 849 | 2.021862% |
| C | 41991 | 756 | 1.800386% |
| D | 41991 | 1856 | 4.419995% |
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 | 46450 | 41989 | 0 | 0 | 0.00% | 0.00% |  |
| B | 46450 | 41985 | 0 | 0 | 0.00% | 0.00% |  |
| C | 46450 | 41991 | 0 | 0 | 0.00% | 0.00% |  |
| D | 46450 | 41986 | 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 | 2376 | 11.6 | 625 | 588 | 154.1 |
| A | 7 | 110 | 1995 | 9.13 | 625 | 588 | 154.1 |
| A | 9 | 19 | 1858 | 8.24 | 625 | 588 | 154.1 |
| B | 2 | 9 | 1827 | 10.15 | 610 | 581 | 122.8 |
| B | 3 | 17 | 1579 | 8.13 | 610 | 581 | 122.8 |
| B | 2 | 8 | 1575 | 8.1 | 610 | 581 | 122.8 |
| C | 3 | 234 | 1769 | 7.35 | 622 | 578 | 162.1 |
| C | 12 | 241 | 1760 | 7.29 | 622 | 578 | 162.1 |
| C | 1 | 81 | 1751 | 7.23 | 622 | 578 | 162.1 |
| D | 7 | 3 | 1478 | 6.11 | 578 | 524 | 156.2 |
| D | 6 | 67 | 1403 | 5.63 | 578 | 524 | 156.2 |
| D | 6 | 231 | 1382 | 5.49 | 578 | 524 | 156.2 |
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 |  |