Observation information
- date-obs: 2020-08-07
- time-obs: 23:21:59.901600000
- date-end: 2020-08-08
- time-end: 12:02:07.897000000
- obs_id: A09_044T01_9000003792
- exposure: 23835.7971718
- sourceid: 4U 1705-44
- observer: jitheshthejus
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_044T01_9000003792cztM0_level2_bc.evt
| modeM0/AS1A09_044T01_9000003792cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,751,374,080 | 520,223,040 |
Size | 1.6 GB
| 496.1 MB
|
Events in quadrant A | 9,967,506 | 3,323,418 |
Events in quadrant B | 8,701,249 | 3,431,088 |
Events in quadrant C | 10,208,762 | 3,311,033 |
Events in quadrant D | 21,439,356 | 2,948,913 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 87517 | 0 |
B | 0 | 83032 | 0 |
C | 0 | 90680 | 0 |
D | 0 | 135261 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 812 | 0 |
B | 0 | 812 | 0 |
C | 0 | 812 | 0 |
D | 0 | 812 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 57 | 0 |
B | 0 | 57 | 0 |
C | 0 | 57 | 0 |
D | 0 | 57 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 39923 | 745 | 1.866092% |
B | 39922 | 596 | 1.492911% |
C | 39923 | 1619 | 4.055306% |
D | 39923 | 5667 | 14.194825% |
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 | 45609 | 39924 | 25 | 25 | 0.05% | 0.06% |  |
B | 45609 | 39924 | 1 | 1 | 0.00% | 0.00% |  |
C | 45609 | 39924 | 19 | 19 | 0.04% | 0.05% |  |
D | 45609 | 39923 | 1069 | 1069 | 2.34% | 2.68% |  |
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 | 0 | 13 | 1531345 | 3267.3 | 2178 | 2139 | 468.0 |
A | 13 | 254 | 65555 | 135.49 | 2178 | 2139 | 468.0 |
A | 8 | 192 | 14905 | 27.27 | 2178 | 2139 | 468.0 |
B | 0 | 230 | 111069 | 261.65 | 2230 | 2180 | 416.2 |
B | 8 | 61 | 14444 | 29.47 | 2230 | 2180 | 416.2 |
B | 3 | 64 | 11893 | 23.34 | 2230 | 2180 | 416.2 |
C | 4 | 254 | 1744242 | 3487.5 | 2123 | 2117 | 499.5 |
C | 3 | 233 | 242743 | 481.7 | 2123 | 2117 | 499.5 |
C | 2 | 16 | 27819 | 51.45 | 2123 | 2117 | 499.5 |
D | 1 | 52 | 11555857 | 25006.9 | 2009 | 1955 | 462.0 |
D | 12 | 233 | 1455768 | 3146.59 | 2009 | 1955 | 462.0 |
D | 13 | 168 | 192482 | 412.37 | 2009 | 1955 | 462.0 |
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 |  |