Observation information
- date-obs: 2023-05-29
- time-obs: 04:45:19.492100000
- date-end: 2023-05-29
- time-end: 07:23:25.486200000
- obs_id: T05_100T01_9000005668
- exposure: 6059.18155974
- 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_41450cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41450cztM0_level2_quad_clean.evt
|
Size (bytes) | 361,036,800 | 103,282,560 |
Size | 344.3 MB
| 98.5 MB
|
Events in quadrant A | 3,502,796 | 690,521 |
Events in quadrant B | 2,906,843 | 712,565 |
Events in quadrant C | 3,589,840 | 653,177 |
Events in quadrant D | 2,865,901 | 624,328 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13992 | 3 |
B | 0 | 13066 | 2 |
C | 0 | 14517 | 2 |
D | 0 | 13229 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6409 | 31 | 0.483695% |
B | 6409 | 5 | 0.078015% |
C | 6409 | 238 | 3.713528% |
D | 6409 | 13 | 0.202840% |
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 | 9486 | 6411 | 15 | 15 | 0.16% | 0.23% |  |
B | 9486 | 6411 | 1 | 1 | 0.01% | 0.02% |  |
C | 9486 | 6411 | 229 | 229 | 2.41% | 3.57% |  |
D | 9486 | 6411 | 10 | 10 | 0.11% | 0.16% |  |
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 | 593995 | 4045.84 | 713 | 697 | 146.6 |
A | 13 | 248 | 114436 | 775.61 | 713 | 697 | 146.6 |
A | 2 | 79 | 29140 | 193.96 | 713 | 697 | 146.6 |
B | 0 | 190 | 102360 | 738.18 | 707 | 688 | 137.7 |
B | 12 | 111 | 17918 | 125.1 | 707 | 688 | 137.7 |
B | 11 | 111 | 16382 | 113.94 | 707 | 688 | 137.7 |
C | 0 | 10 | 663259 | 4143.26 | 681 | 685 | 159.9 |
C | 15 | 214 | 264587 | 1650.25 | 681 | 685 | 159.9 |
C | 12 | 249 | 5876 | 32.46 | 681 | 685 | 159.9 |
D | 13 | 249 | 84456 | 493.2 | 696 | 677 | 169.9 |
D | 1 | 47 | 27470 | 157.73 | 696 | 677 | 169.9 |
D | 12 | 233 | 26122 | 149.79 | 696 | 677 | 169.9 |
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 |  |