Observation information
- date-obs: 2023-05-29
- time-obs: 03:21:50.495500000
- date-end: 2023-05-29
- time-end: 05:35:55.490000000
- obs_id: T05_100T01_9000005668
- exposure: 4963.81031108
- 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_41449cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41449cztM0_level2_quad_clean.evt
|
Size (bytes) | 306,927,360 | 85,867,200 |
Size | 292.7 MB
| 81.9 MB
|
Events in quadrant A | 2,859,424 | 575,806 |
Events in quadrant B | 2,379,679 | 593,727 |
Events in quadrant C | 3,086,141 | 538,990 |
Events in quadrant D | 2,622,341 | 519,915 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 0 |
B | 0 | 27 | 0 |
C | 0 | 27 | 0 |
D | 0 | 28 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11512 | 3 |
B | 0 | 10779 | 2 |
C | 0 | 12453 | 2 |
D | 0 | 11686 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5306 | 17 | 0.320392% |
B | 5306 | 6 | 0.113080% |
C | 5306 | 255 | 4.805880% |
D | 5306 | 33 | 0.621937% |
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 | 6980 | 5307 | 3 | 3 | 0.04% | 0.06% |  |
B | 6980 | 5307 | 1 | 1 | 0.01% | 0.02% |  |
C | 6980 | 5307 | 246 | 246 | 3.52% | 4.64% |  |
D | 6980 | 5307 | 26 | 26 | 0.37% | 0.49% |  |
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 | 512465 | 4234.77 | 586 | 572 | 120.9 |
A | 13 | 248 | 41269 | 336.68 | 586 | 572 | 120.9 |
A | 2 | 79 | 31606 | 256.74 | 586 | 572 | 120.9 |
B | 0 | 190 | 75478 | 660.09 | 582 | 566 | 113.5 |
B | 12 | 111 | 14613 | 123.78 | 582 | 566 | 113.5 |
B | 11 | 111 | 13646 | 115.25 | 582 | 566 | 113.5 |
C | 0 | 10 | 703562 | 5395.2 | 555 | 558 | 130.3 |
C | 15 | 214 | 217727 | 1666.66 | 555 | 558 | 130.3 |
C | 13 | 61 | 3676 | 23.93 | 555 | 558 | 130.3 |
D | 1 | 47 | 163846 | 1173.7 | 569 | 554 | 139.1 |
D | 13 | 249 | 104289 | 745.62 | 569 | 554 | 139.1 |
D | 2 | 249 | 83398 | 595.46 | 569 | 554 | 139.1 |
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 |  |