Observation information
- date-obs: 2023-05-28
- time-obs: 15:21:50.718900000
- date-end: 2023-05-28
- time-end: 15:43:35.525700000
- obs_id: T05_100T01_9000005668
- exposure: 766.47870028
- sourceid: NGC 4395
- observer: hengxiao
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_100T01_9000005668_41440cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41440cztM0_level2_quad_clean.evt
|
Size (bytes) | 78,624,000 | 14,938,560 |
Size | 75.0 MB
| 14.2 MB
|
Events in quadrant A | 809,476 | 104,682 |
Events in quadrant B | 448,359 | 106,330 |
Events in quadrant C | 729,147 | 87,946 |
Events in quadrant D | 850,431 | 83,469 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 5 | 0 |
B | 0 | 5 | 0 |
C | 0 | 5 | 0 |
D | 0 | 5 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 18 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3056 | 2 |
B | 0 | 1852 | 1 |
C | 0 | 2681 | 1 |
D | 0 | 3119 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 900 | 22 | 2.444444% |
B | 900 | 3 | 0.333333% |
C | 900 | 121 | 13.444444% |
D | 900 | 126 | 14.000000% |
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 | 900 | 900 | 5 | 5 | 0.56% | 0.56% |  |
B | 900 | 900 | 0 | 0 | 0.00% | 0.00% |  |
C | 900 | 900 | 114 | 114 | 12.67% | 12.67% |  |
D | 900 | 900 | 94 | 94 | 10.44% | 10.44% |  |
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 | 2 | 79 | 226290 | 9533.11 | 107 | 104 | 23.7 |
A | 10 | 83 | 162827 | 6858.32 | 107 | 104 | 23.7 |
A | 12 | 189 | 3628 | 148.53 | 107 | 104 | 23.7 |
B | 0 | 190 | 18976 | 847.87 | 105 | 102 | 22.3 |
B | 4 | 81 | 6570 | 290.56 | 105 | 102 | 22.3 |
B | 0 | 155 | 5416 | 238.72 | 105 | 102 | 22.3 |
C | 0 | 10 | 314873 | 13166.8 | 94 | 94 | 23.9 |
C | 15 | 214 | 37626 | 1569.91 | 94 | 94 | 23.9 |
C | 12 | 249 | 7797 | 322.21 | 94 | 94 | 23.9 |
D | 13 | 249 | 336018 | 12514.82 | 102 | 99 | 26.8 |
D | 13 | 171 | 29744 | 1104.44 | 102 | 99 | 26.8 |
D | 12 | 233 | 26699 | 991.0 | 102 | 99 | 26.8 |
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 |  |