ASTROSAT CZTI

Data Quality Report

Orbit 44653

Creation date: 2024-06-27T23:04:57.580883
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/AS1A13_072T01_9000006008_44653cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44653cztM0_level2_quad_clean.evt
Size (bytes)512,686,080119,635,200
Size488.9 MB 114.1 MB
Events in quadrant A6,141,804802,114
Events in quadrant B3,472,118829,790
Events in quadrant C3,372,082780,334
Events in quadrant D5,399,952679,636

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245980
B0158090
C0157680
D0215240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76261021.337530%
B7627410.537564%
C7627190.249115%
D76274796.280320%

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 7626 7626 35 35 0.46% 0.46%
B 7627 7627 7 7 0.09% 0.09%
C 7627 7627 11 11 0.14% 0.14%
D 7627 7627 407 407 5.34% 5.34%

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 1940992 11335.7 821 803 171.2
A 15 223 890959 5200.8 821 803 171.2
A 10 248 66538 384.06 821 803 171.2
B 0 186 83474 513.33 819 794 161.1
B 0 183 50381 307.86 819 794 161.1
B 0 189 39561 240.69 819 794 161.1
C 14 254 112163 598.77 797 803 186.0
C 12 2 54261 287.44 797 803 186.0
C 0 207 49761 263.24 797 803 186.0
D 13 249 962821 4954.77 778 753 194.2
D 4 221 566349 2912.89 778 753 194.2
D 1 52 351059 1804.12 778 753 194.2

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