Observation information
- date-obs: 2024-07-23
- time-obs: 12:56:57.196100000
- date-end: 2024-07-23
- time-end: 15:07:22.182900000
- obs_id: A13_082T01_9000006342
- exposure: 6564.47839463
- sourceid: NGC 1399
- observer: pshalima
- ra_pnt: 54.62094
- dec_pnt: -35.45066
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_082T01_9000006342_47695cztM0_level2.fits
| modeM0/AS1A13_082T01_9000006342_47695cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,243,520 | 113,400,000 |
| Size | 482.8 MB
| 108.1 MB
|
| Events in quadrant A | 7,407,254 | 735,127 |
| Events in quadrant B | 3,427,622 | 775,750 |
| Events in quadrant C | 3,217,547 | 749,345 |
| Events in quadrant D | 4,144,475 | 686,153 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27445 | 2 |
| B | 0 | 14795 | 2 |
| C | 0 | 14583 | 2 |
| D | 0 | 17073 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6995 | 377 | 5.389564% |
| B | 6996 | 167 | 2.387078% |
| C | 6996 | 87 | 1.243568% |
| D | 6996 | 179 | 2.558605% |
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 | 7825 | 6995 | 12 | 12 | 0.15% | 0.17% |  |
| B | 7826 | 6996 | 5 | 5 | 0.06% | 0.07% |  |
| C | 7826 | 6996 | 7 | 7 | 0.09% | 0.10% |  |
| D | 7826 | 6996 | 79 | 79 | 1.01% | 1.13% |  |
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 | 10 | 83 | 4152167 | 24735.46 | 804 | 785 | 167.8 |
| A | 9 | 191 | 143880 | 852.61 | 804 | 785 | 167.8 |
| A | 3 | 137 | 9485 | 51.84 | 804 | 785 | 167.8 |
| B | 0 | 200 | 118182 | 726.14 | 810 | 783 | 161.7 |
| B | 0 | 198 | 33407 | 201.79 | 810 | 783 | 161.7 |
| B | 0 | 246 | 21725 | 129.53 | 810 | 783 | 161.7 |
| C | 12 | 2 | 56571 | 294.38 | 800 | 806 | 189.4 |
| C | 14 | 254 | 38280 | 197.82 | 800 | 806 | 189.4 |
| C | 13 | 61 | 5263 | 23.53 | 800 | 806 | 189.4 |
| D | 12 | 2 | 679265 | 3375.85 | 803 | 778 | 201.0 |
| D | 2 | 165 | 146031 | 722.71 | 803 | 778 | 201.0 |
| D | 13 | 23 | 45487 | 222.45 | 803 | 778 | 201.0 |
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 |  |