ASTROSAT CZTI

Data Quality Report

Orbit 24032

Creation date: 2024-06-27T19:01:22.141962
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/AS1A07_165T01_9000003558_24032cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24032cztM0_level2_quad_clean.evt
Size (bytes)493,712,640130,919,040
Size470.8 MB 124.9 MB
Events in quadrant A3,159,131888,721
Events in quadrant B4,387,308891,089
Events in quadrant C3,300,684860,386
Events in quadrant D3,638,848846,851

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140341
B0174771
C0142681
D0152601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6861550.801632%
B68622463.584961%
C6862901.311571%
D6862410.597493%

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 7231 6862 0 0 0.00% 0.00%
B 7232 6863 96 96 1.33% 1.40%
C 7232 6863 2 2 0.03% 0.03%
D 7232 6863 9 9 0.12% 0.13%

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 11268 63.53 818 801 164.8
A 3 137 7055 37.96 818 801 164.8
A 0 226 6933 37.22 818 801 164.8
B 0 197 1142811 7482.34 811 794 152.6
B 0 189 42796 275.19 811 794 152.6
B 12 111 17723 110.92 811 794 152.6
C 14 238 124893 682.81 781 784 181.8
C 7 247 66262 360.24 781 784 181.8
C 0 239 57175 310.25 781 784 181.8
D 8 195 353325 1840.88 792 767 191.5
D 1 52 176537 917.78 792 767 191.5
D 7 38 52049 267.77 792 767 191.5

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