Observation information
- date-obs: 2023-05-28
- time-obs: 18:38:30.517200000
- date-end: 2023-05-28
- time-end: 20:55:41.512100000
- obs_id: T05_100T01_9000005668
- exposure: 4785.20528966
- 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_41444cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41444cztM0_level2_quad_clean.evt
|
Size (bytes) | 320,221,440 | 89,291,520 |
Size | 305.4 MB
| 85.2 MB
|
Events in quadrant A | 2,835,665 | 606,308 |
Events in quadrant B | 2,363,691 | 628,653 |
Events in quadrant C | 3,573,062 | 562,458 |
Events in quadrant D | 2,677,885 | 543,955 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11484 | 3 |
B | 0 | 10509 | 2 |
C | 0 | 13692 | 2 |
D | 0 | 11635 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5172 | 12 | 0.232019% |
B | 5172 | 8 | 0.154679% |
C | 5172 | 337 | 6.515855% |
D | 5172 | 88 | 1.701469% |
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 | 7115 | 5173 | 4 | 4 | 0.06% | 0.08% |  |
B | 7115 | 5173 | 0 | 0 | 0.00% | 0.00% |  |
C | 7115 | 5173 | 337 | 337 | 4.74% | 6.51% |  |
D | 7115 | 5173 | 69 | 69 | 0.97% | 1.33% |  |
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 | 500525 | 4180.57 | 581 | 570 | 119.6 |
A | 12 | 189 | 55918 | 462.81 | 581 | 570 | 119.6 |
A | 2 | 79 | 17382 | 140.58 | 581 | 570 | 119.6 |
B | 0 | 190 | 52303 | 463.59 | 583 | 567 | 111.6 |
B | 12 | 111 | 14018 | 120.53 | 583 | 567 | 111.6 |
B | 11 | 111 | 12952 | 110.98 | 583 | 567 | 111.6 |
C | 0 | 10 | 716725 | 5651.2 | 548 | 551 | 126.7 |
C | 9 | 54 | 506509 | 3992.42 | 548 | 551 | 126.7 |
C | 15 | 214 | 210754 | 1658.67 | 548 | 551 | 126.7 |
D | 13 | 171 | 240744 | 1736.25 | 564 | 548 | 138.3 |
D | 13 | 249 | 130101 | 936.47 | 564 | 548 | 138.3 |
D | 1 | 47 | 39291 | 280.05 | 564 | 548 | 138.3 |
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 |  |