Observation information
- date-obs: 2024-01-08
- time-obs: 18:51:11.281200000
- date-end: 2024-01-08
- time-end: 20:46:59.272700000
- obs_id: A13_004T12_9000006020
- exposure: 4043.71611953
- sourceid: M31 Field 24
- observer: dleahy
- ra_pnt: 12.33333
- dec_pnt: 42.14722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_004T12_9000006020_44778cztM0_level2.fits
| modeM0/AS1A13_004T12_9000006020_44778cztM0_level2_quad_clean.evt
|
Size (bytes) | 570,605,760 | 91,972,800 |
Size | 544.2 MB
| 87.7 MB
|
Events in quadrant A | 6,679,146 | 622,843 |
Events in quadrant B | 4,055,274 | 654,034 |
Events in quadrant C | 2,774,685 | 675,007 |
Events in quadrant D | 7,166,488 | 430,866 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23900 | 1 |
B | 0 | 15932 | 1 |
C | 0 | 12223 | 1 |
D | 0 | 25279 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5753 | 631 | 10.968191% |
B | 5754 | 454 | 7.890163% |
C | 5754 | 54 | 0.938478% |
D | 5754 | 1822 | 31.664929% |
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 | 6948 | 5754 | 459 | 459 | 6.61% | 7.98% |  |
B | 6949 | 5754 | 338 | 338 | 4.86% | 5.87% |  |
C | 6949 | 5755 | 9 | 9 | 0.13% | 0.16% |  |
D | 6949 | 5754 | 1569 | 1569 | 22.58% | 27.27% |  |
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 | 15 | 223 | 1853848 | 14071.51 | 642 | 628 | 131.7 |
A | 10 | 83 | 1825062 | 13852.93 | 642 | 628 | 131.7 |
A | 13 | 248 | 413147 | 3132.26 | 642 | 628 | 131.7 |
B | 4 | 171 | 645627 | 5113.88 | 645 | 624 | 126.1 |
B | 0 | 189 | 374807 | 2966.69 | 645 | 624 | 126.1 |
B | 5 | 255 | 206677 | 1633.68 | 645 | 624 | 126.1 |
C | 2 | 16 | 71476 | 456.36 | 666 | 670 | 155.2 |
C | 3 | 233 | 47068 | 299.05 | 666 | 670 | 155.2 |
C | 2 | 14 | 21095 | 131.64 | 666 | 670 | 155.2 |
D | 13 | 174 | 1908051 | 13798.33 | 551 | 535 | 138.2 |
D | 1 | 52 | 1361727 | 9846.4 | 551 | 535 | 138.2 |
D | 2 | 249 | 514362 | 3716.85 | 551 | 535 | 138.2 |
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 |  |