Observation information
- date-obs: 2023-05-29
- time-obs: 01:23:30.500700000
- date-end: 2023-05-29
- time-end: 03:49:51.494900000
- obs_id: T05_100T01_9000005668
- exposure: 4530.30896819
- 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_41448cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41448cztM0_level2_quad_clean.evt
|
Size (bytes) | 306,820,800 | 79,467,840 |
Size | 292.6 MB
| 75.8 MB
|
Events in quadrant A | 2,603,813 | 537,339 |
Events in quadrant B | 2,244,829 | 554,696 |
Events in quadrant C | 2,946,536 | 500,243 |
Events in quadrant D | 3,181,403 | 471,273 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38 | 0 |
B | 0 | 38 | 0 |
C | 0 | 38 | 0 |
D | 0 | 39 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10567 | 3 |
B | 0 | 10043 | 2 |
C | 0 | 11754 | 2 |
D | 0 | 12963 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4883 | 8 | 0.163834% |
B | 4883 | 10 | 0.204792% |
C | 4883 | 273 | 5.590825% |
D | 4883 | 229 | 4.689740% |
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 | 6885 | 4884 | 2 | 2 | 0.03% | 0.04% |  |
B | 6885 | 4884 | 0 | 0 | 0.00% | 0.00% |  |
C | 6885 | 4884 | 268 | 268 | 3.89% | 5.49% |  |
D | 6885 | 4884 | 185 | 185 | 2.69% | 3.79% |  |
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 | 486466 | 4351.61 | 541 | 530 | 111.7 |
A | 13 | 248 | 12956 | 111.28 | 541 | 530 | 111.7 |
A | 13 | 254 | 7661 | 63.86 | 541 | 530 | 111.7 |
B | 0 | 190 | 89200 | 844.13 | 539 | 523 | 105.1 |
B | 12 | 111 | 13485 | 123.39 | 539 | 523 | 105.1 |
B | 11 | 111 | 12482 | 113.84 | 539 | 523 | 105.1 |
C | 0 | 10 | 765235 | 6479.82 | 507 | 509 | 118.0 |
C | 15 | 214 | 199759 | 1688.32 | 507 | 509 | 118.0 |
C | 13 | 61 | 3378 | 24.31 | 507 | 509 | 118.0 |
D | 13 | 249 | 706401 | 5599.63 | 513 | 497 | 126.1 |
D | 1 | 47 | 375897 | 2977.88 | 513 | 497 | 126.1 |
D | 5 | 222 | 71499 | 563.23 | 513 | 497 | 126.1 |
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 |  |