ASTROSAT CZTI

Data Quality Report

Orbit 28403

Creation date: 2024-06-27T19:51:24.299571
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/AS1A10_058T13_9000004088_28403cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28403cztM0_level2_quad_clean.evt
Size (bytes)551,188,80088,390,080
Size525.7 MB 84.3 MB
Events in quadrant A3,615,446550,549
Events in quadrant B3,858,268561,457
Events in quadrant C3,692,226534,815
Events in quadrant D5,021,453511,101

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154490
B0160200
C0155620
D0196930

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7448460.617615%
B7449991.329037%
C74491141.530407%
D74492353.154786%

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 9098 7450 0 0 0.00% 0.00%
B 9099 7451 7 7 0.08% 0.09%
C 9099 7451 5 5 0.05% 0.07%
D 9099 7451 172 172 1.89% 2.31%

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 6 16 12936 63.75 932 912 188.6
A 13 254 11458 55.92 932 912 188.6
A 3 137 9235 44.13 932 912 188.6
B 10 245 103015 560.15 935 913 182.3
B 10 246 37686 201.74 935 913 182.3
B 12 111 22706 119.56 935 913 182.3
C 14 238 142183 664.45 899 907 212.6
C 7 220 45670 210.53 899 907 212.6
C 13 61 6167 24.74 899 907 212.6
D 8 195 647140 2991.44 896 871 216.0
D 2 250 429389 1983.52 896 871 216.0
D 1 52 420449 1942.14 896 871 216.0

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