Observation information
- date-obs: 2024-02-13
- time-obs: 19:00:56.197000000
- date-end: 2024-02-13
- time-end: 21:17:52.018000000
- obs_id: A13_047T01_9000006068
- exposure: 6295.69567508
- sourceid: NGC 922
- observer: sbarway
- ra_pnt: 36.26842
- dec_pnt: -24.78817
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_047T01_9000006068_45312cztM0_level2.fits
| modeM0/AS1A13_047T01_9000006068_45312cztM0_level2_quad_clean.evt
|
Size (bytes) | 466,704,000 | 107,127,360 |
Size | 445.1 MB
| 102.2 MB
|
Events in quadrant A | 5,781,956 | 709,465 |
Events in quadrant B | 3,564,283 | 737,422 |
Events in quadrant C | 3,481,538 | 702,739 |
Events in quadrant D | 3,939,790 | 637,137 |
Level1 data integrity
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 M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21949 | 2 |
B | 0 | 15154 | 2 |
C | 0 | 15003 | 2 |
D | 0 | 16385 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 17 | 0 |
C | 0 | 18 | 0 |
D | 0 | 18 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6552 | 167 | 2.548840% |
B | 6552 | 99 | 1.510989% |
C | 6552 | 110 | 1.678877% |
D | 6552 | 110 | 1.678877% |
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 | 7673 | 6554 | 88 | 88 | 1.15% | 1.34% |  |
B | 7673 | 6554 | 55 | 55 | 0.72% | 0.84% |  |
C | 7673 | 6554 | 106 | 106 | 1.38% | 1.62% |  |
D | 7673 | 6553 | 124 | 124 | 1.62% | 1.89% |  |
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 | 2783695 | 18368.0 | 729 | 713 | 151.5 |
A | 13 | 248 | 91523 | 599.36 | 729 | 713 | 151.5 |
A | 10 | 248 | 48154 | 313.12 | 729 | 713 | 151.5 |
B | 0 | 155 | 152810 | 1050.53 | 735 | 713 | 144.8 |
B | 4 | 158 | 144059 | 990.09 | 735 | 713 | 144.8 |
B | 0 | 186 | 91391 | 626.31 | 735 | 713 | 144.8 |
C | 14 | 254 | 606421 | 3572.44 | 716 | 724 | 169.5 |
C | 12 | 2 | 33067 | 190.76 | 716 | 724 | 169.5 |
C | 3 | 233 | 22477 | 128.3 | 716 | 724 | 169.5 |
D | 1 | 52 | 412675 | 2308.08 | 709 | 688 | 178.5 |
D | 13 | 29 | 153507 | 856.14 | 709 | 688 | 178.5 |
D | 13 | 171 | 145889 | 813.46 | 709 | 688 | 178.5 |
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 |  |