Observation information
- date-obs: 2023-05-28
- time-obs: 20:25:10.513800000
- date-end: 2023-05-28
- time-end: 22:39:51.508400000
- obs_id: T05_100T01_9000005668
- exposure: 4679.79305702
- 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_41445cztM0_level2.fits
| modeM0/AS1T05_100T01_9000005668_41445cztM0_level2_quad_clean.evt
|
Size (bytes) | 302,489,280 | 88,076,160 |
Size | 288.5 MB
| 84.0 MB
|
Events in quadrant A | 2,724,126 | 601,834 |
Events in quadrant B | 2,303,115 | 624,495 |
Events in quadrant C | 3,045,074 | 556,369 |
Events in quadrant D | 2,732,341 | 531,698 |
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 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11084 | 3 |
B | 0 | 10163 | 2 |
C | 0 | 12048 | 2 |
D | 0 | 11631 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5032 | 12 | 0.238474% |
B | 5032 | 9 | 0.178855% |
C | 5032 | 271 | 5.385533% |
D | 5032 | 118 | 2.344992% |
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 | 7095 | 5033 | 5 | 5 | 0.07% | 0.10% |  |
B | 7095 | 5033 | 1 | 1 | 0.01% | 0.02% |  |
C | 7095 | 5033 | 256 | 256 | 3.61% | 5.09% |  |
D | 7095 | 5033 | 102 | 102 | 1.44% | 2.03% |  |
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 | 477300 | 4041.93 | 573 | 563 | 117.9 |
A | 13 | 248 | 15260 | 124.61 | 573 | 563 | 117.9 |
A | 2 | 79 | 11395 | 91.84 | 573 | 563 | 117.9 |
B | 0 | 190 | 24425 | 218.31 | 575 | 561 | 109.3 |
B | 12 | 111 | 13658 | 119.81 | 575 | 561 | 109.3 |
B | 11 | 111 | 12841 | 112.34 | 575 | 561 | 109.3 |
C | 0 | 10 | 730957 | 5805.65 | 540 | 545 | 125.8 |
C | 15 | 214 | 204554 | 1621.56 | 540 | 545 | 125.8 |
C | 13 | 61 | 3657 | 24.74 | 540 | 545 | 125.8 |
D | 13 | 249 | 334918 | 2477.89 | 552 | 536 | 134.9 |
D | 13 | 171 | 124082 | 915.52 | 552 | 536 | 134.9 |
D | 1 | 47 | 107961 | 796.06 | 552 | 536 | 134.9 |
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 |  |