Observation information
- date-obs: 2023-12-08
- time-obs: 11:17:39.353100000
- date-end: 2023-12-08
- time-end: 13:35:40.347900000
- obs_id: A13_004T13_9000005988
- exposure: 5647.46504003
- sourceid: M31 Field 25
- observer: dleahy
- ra_pnt: 11.54583
- dec_pnt: 42.53889
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_004T13_9000005988_44314cztM0_level2.fits
| modeM0/AS1A13_004T13_9000005988_44314cztM0_level2_quad_clean.evt
|
Size (bytes) | 512,686,080 | 113,685,120 |
Size | 488.9 MB
| 108.4 MB
|
Events in quadrant A | 5,075,746 | 784,682 |
Events in quadrant B | 3,864,902 | 798,373 |
Events in quadrant C | 3,165,128 | 769,670 |
Events in quadrant D | 6,364,435 | 633,818 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20585 | 2 |
B | 0 | 15768 | 2 |
C | 0 | 13830 | 2 |
D | 0 | 23237 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 132 | 0 |
B | 0 | 132 | 0 |
C | 0 | 132 | 0 |
D | 0 | 132 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 18 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6538 | 289 | 4.420312% |
B | 6538 | 319 | 4.879168% |
C | 6538 | 123 | 1.881309% |
D | 6538 | 1000 | 15.295197% |
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 | 7653 | 6538 | 10 | 10 | 0.13% | 0.15% |  |
B | 7653 | 6538 | 110 | 110 | 1.44% | 1.68% |  |
C | 7653 | 6538 | 5 | 5 | 0.07% | 0.08% |  |
D | 7653 | 6538 | 823 | 823 | 10.75% | 12.59% |  |
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 | 1672195 | 10157.91 | 802 | 787 | 164.5 |
A | 15 | 223 | 208109 | 1259.99 | 802 | 787 | 164.5 |
A | 0 | 243 | 38503 | 229.22 | 802 | 787 | 164.5 |
B | 5 | 172 | 318956 | 2068.43 | 786 | 761 | 153.8 |
B | 4 | 158 | 114209 | 737.47 | 786 | 761 | 153.8 |
B | 5 | 255 | 76579 | 492.85 | 786 | 761 | 153.8 |
C | 14 | 254 | 100286 | 546.82 | 778 | 780 | 182.0 |
C | 3 | 233 | 18699 | 98.47 | 778 | 780 | 182.0 |
C | 1 | 3 | 8167 | 40.59 | 778 | 780 | 182.0 |
D | 13 | 249 | 1876575 | 10182.64 | 741 | 717 | 184.2 |
D | 5 | 222 | 923001 | 5006.39 | 741 | 717 | 184.2 |
D | 2 | 153 | 140774 | 760.27 | 741 | 717 | 184.2 |
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 |  |