Observation information
- date-obs: 2024-07-22
- time-obs: 12:39:18.329500000
- date-end: 2024-07-22
- time-end: 14:48:42.318200000
- obs_id: A13_082T01_9000006342
- exposure: 6473.38306803
- 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_47680cztM0_level2.fits
| modeM0/AS1A13_082T01_9000006342_47680cztM0_level2_quad_clean.evt
|
| Size (bytes) | 469,486,080 | 112,406,400 |
| Size | 447.7 MB
| 107.2 MB
|
| Events in quadrant A | 7,090,582 | 737,953 |
| Events in quadrant B | 3,324,143 | 764,829 |
| Events in quadrant C | 3,203,166 | 741,447 |
| Events in quadrant D | 3,232,004 | 684,641 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26466 | 1 |
| B | 0 | 14251 | 1 |
| C | 0 | 14363 | 1 |
| D | 0 | 14304 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6814 | 282 | 4.138538% |
| B | 6815 | 138 | 2.024945% |
| C | 6814 | 82 | 1.203405% |
| D | 6814 | 82 | 1.203405% |
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 | 7764 | 6815 | 4 | 4 | 0.05% | 0.06% |  |
| B | 7765 | 6816 | 3 | 3 | 0.04% | 0.04% |  |
| C | 7764 | 6815 | 5 | 5 | 0.06% | 0.07% |  |
| D | 7764 | 6815 | 7 | 7 | 0.09% | 0.10% |  |
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 | 3933924 | 23973.77 | 789 | 770 | 164.1 |
| A | 9 | 191 | 101341 | 613.01 | 789 | 770 | 164.1 |
| A | 3 | 137 | 9349 | 52.29 | 789 | 770 | 164.1 |
| B | 0 | 200 | 81180 | 512.43 | 791 | 765 | 156.9 |
| B | 0 | 190 | 49100 | 308.01 | 791 | 765 | 156.9 |
| B | 0 | 198 | 22045 | 135.6 | 791 | 765 | 156.9 |
| C | 14 | 254 | 92582 | 498.12 | 776 | 778 | 184.3 |
| C | 3 | 233 | 56213 | 300.78 | 776 | 778 | 184.3 |
| C | 12 | 241 | 12821 | 65.34 | 776 | 778 | 184.3 |
| D | 8 | 176 | 57727 | 291.01 | 782 | 761 | 195.8 |
| D | 2 | 165 | 48009 | 241.36 | 782 | 761 | 195.8 |
| D | 11 | 224 | 39496 | 197.87 | 782 | 761 | 195.8 |
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 |  |