ASTROSAT CZTI

Data Quality Report

Orbit 10682

Creation date: 2024-06-27T16:02:25.352243
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_097T01_9000001540_10682cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10682cztM0_level2_quad_clean.evt
Size (bytes)548,510,40088,018,560
Size523.1 MB 83.9 MB
Events in quadrant A3,301,263570,153
Events in quadrant B5,202,809570,591
Events in quadrant C2,960,642576,018
Events in quadrant D4,732,449520,941

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138463
B0195752
C0128022
D0181982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6117621.013569%
B61174397.176721%
C6117320.523132%
D61172794.561059%

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 7467 6118 18 18 0.24% 0.29%
B 7467 6118 269 269 3.60% 4.40%
C 7467 6118 6 6 0.08% 0.10%
D 7467 6118 218 218 2.92% 3.56%

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 0 167 108092 710.84 754 739 151.0
A 15 174 91430 600.51 754 739 151.0
A 15 239 85990 564.49 754 739 151.0
B 0 85 1248412 8867.5 751 734 140.7
B 4 239 783095 5560.4 751 734 140.7
B 4 81 74228 522.34 751 734 140.7
C 14 234 29629 167.49 745 749 172.4
C 4 175 9885 52.99 745 749 172.4
C 13 61 5660 28.48 745 749 172.4
D 2 16 741527 4261.23 725 708 173.9
D 10 199 547980 3147.94 725 708 173.9
D 8 195 366815 2105.87 725 708 173.9

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