ASTROSAT CZTI

Data Quality Report

Orbit 08965

Creation date: 2024-06-27T15:39:32.289592
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/AS1G07_019T01_9000001244_08965cztM0_level2.evt modeM0/AS1G07_019T01_9000001244_08965cztM0_level2_quad_clean.evt
Size (bytes)623,560,320106,306,560
Size594.7 MB 101.4 MB
Events in quadrant A4,136,967687,719
Events in quadrant B4,558,370677,885
Events in quadrant C4,209,912673,602
Events in quadrant D5,455,557642,342

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175863
B0189272
C0181832
D0213452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7730871.125485%
B77303714.799483%
C77302583.337646%
D77304666.028461%

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 8435 7732 19 19 0.23% 0.25%
B 8435 7732 266 266 3.15% 3.44%
C 8435 7732 163 163 1.93% 2.11%
D 8435 7732 357 357 4.23% 4.62%

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 8 5 562574 3015.06 896 874 186.3
A 5 16 66070 349.96 896 874 186.3
A 15 174 31415 163.94 896 874 186.3
B 10 252 847852 4983.87 892 870 169.9
B 10 16 87789 511.45 892 870 169.9
B 0 219 24393 138.42 892 870 169.9
C 4 254 812517 4004.05 867 869 202.7
C 14 234 7510 32.76 867 869 202.7
C 13 61 6524 27.9 867 869 202.7
D 13 104 606596 2833.29 863 835 213.8
D 13 29 600885 2806.58 863 835 213.8
D 8 195 451700 2108.8 863 835 213.8

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