Observation information
- date-obs: 2024-08-18
- time-obs: 00:25:51.416400000
- date-end: 2024-08-18
- time-end: 02:53:06.403300000
- obs_id: A13_073T04_9000006396
- exposure: 1.37637758255
- sourceid: M31 Field 1
- observer: Judhajeet
- ra_pnt: 10.71042
- dec_pnt: 41.25023
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_073T04_9000006396_48073cztM0_level2.fits
| modeM0/AS1A13_073T04_9000006396_48073cztM0_level2_quad_clean.evt
|
| Size (bytes) | 509,667,840 | 94,193,280 |
| Size | 486.1 MB
| 89.8 MB
|
| Events in quadrant A | 7,683,945 | 800,562 |
| Events in quadrant B | 1,290,537 | 116 |
| Events in quadrant C | 3,380,892 | 809,321 |
| Events in quadrant D | 5,908,636 | 709,773 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27966 | 3 |
| B | 0 | 8021 | 3 |
| C | 0 | 16014 | 3 |
| D | 0 | 22822 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7645 | 400 | 5.232178% |
| B | 7645 | 7643 | 99.973839% |
| C | 7646 | 45 | 0.588543% |
| D | 7646 | 473 | 6.186241% |
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 | 8835 | 7648 | 24 | 24 | 0.27% | 0.31% |  |
| B | 8834 | 7644 | 2 | 2 | 0.02% | 0.03% |  |
| C | 8836 | 7649 | 2 | 2 | 0.02% | 0.03% |  |
| D | 8836 | 7649 | 389 | 389 | 4.40% | 5.09% |  |
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 | 4223372 | 23561.48 | 857 | 840 | 179.2 |
| A | 0 | 31 | 132668 | 735.59 | 857 | 840 | 179.2 |
| A | 13 | 254 | 14577 | 76.65 | 857 | 840 | 179.2 |
| B | 2 | 177 | 1058170 | 82150.47 | 54 | 52 | 12.9 |
| B | 5 | 32 | 14180 | 1096.87 | 54 | 52 | 12.9 |
| B | 12 | 111 | 1507 | 112.96 | 54 | 52 | 12.9 |
| C | 12 | 2 | 15953 | 74.05 | 858 | 861 | 203.8 |
| C | 14 | 254 | 11115 | 50.31 | 858 | 861 | 203.8 |
| C | 15 | 208 | 8207 | 36.05 | 858 | 861 | 203.8 |
| D | 2 | 165 | 1671223 | 7897.86 | 836 | 811 | 211.5 |
| D | 13 | 84 | 553385 | 2612.62 | 836 | 811 | 211.5 |
| D | 2 | 249 | 307584 | 1450.45 | 836 | 811 | 211.5 |
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 |  |