ASTROSAT CZTI

Data Quality Report

Orbit 12059

Creation date: 2024-06-27T16:21:51.740006
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_085T02_9000001784_12059cztM0_level2.evt modeM0/AS1A03_085T02_9000001784_12059cztM0_level2_quad_clean.evt
Size (bytes)515,151,36088,179,840
Size491.3 MB 84.1 MB
Events in quadrant A3,287,776568,798
Events in quadrant B4,779,604553,278
Events in quadrant C3,021,093553,253
Events in quadrant D4,063,427533,199

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141973
B0185562
C0136072
D0166662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6624751.132246%
B66244897.382246%
C6624120.181159%
D66241332.007850%

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 7550 6626 6 6 0.08% 0.09%
B 7550 6626 271 271 3.59% 4.09%
C 7550 6626 0 0 0.00% 0.00%
D 7550 6626 92 92 1.22% 1.39%

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 5 16 55729 335.8 804 787 163.6
A 13 251 48279 290.27 804 787 163.6
A 1 162 36854 220.44 804 787 163.6
B 4 239 1316742 8703.87 788 769 151.2
B 4 206 252992 1668.2 788 769 151.2
B 15 204 61517 401.79 788 769 151.2
C 13 61 5665 27.09 773 779 180.4
C 14 234 5454 25.92 773 779 180.4
C 7 247 2468 9.36 773 779 180.4
D 1 52 970276 5248.11 765 743 184.7
D 8 195 104132 559.65 765 743 184.7
D 13 249 42308 224.99 765 743 184.7

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