ASTROSAT CZTI

Data Quality Report

Orbit 32430

Creation date: 2024-06-27T20:40:06.766920
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/AS1A09_108T02_9000004706_32430cztM0_level2.evt modeM0/AS1A09_108T02_9000004706_32430cztM0_level2_quad_clean.evt
Size (bytes)1,010,160,000110,318,400
Size963.4 MB 105.2 MB
Events in quadrant A3,777,510747,150
Events in quadrant B6,092,391766,975
Events in quadrant C15,677,299546,032
Events in quadrant D4,504,432721,644

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167362
B0245521
C0520591
D0192001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80191762.194787%
B80194125.137798%
C8019540167.352538%
D80191231.533857%

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 8269 8020 0 0 0.00% 0.00%
B 8269 8020 1 1 0.01% 0.01%
C 8269 8020 4345 4345 52.55% 54.18%
D 8269 8020 30 30 0.36% 0.37%

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 13 254 13985 66.08 976 956 197.2
A 3 137 10502 48.41 976 956 197.2
A 0 226 8083 36.14 976 956 197.2
B 6 159 2159652 11424.82 972 944 188.9
B 4 80 72055 376.35 972 944 188.9
B 12 111 24263 123.41 972 944 188.9
C 3 233 12331101 71169.27 739 743 173.3
C 0 10 195261 1122.73 739 743 173.3
C 14 238 124872 716.46 739 743 173.3
D 8 195 596554 2612.99 948 922 228.0
D 2 250 135789 591.65 948 922 228.0
D 6 239 77253 334.86 948 922 228.0

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