ASTROSAT CZTI

Data Quality Report

Orbit 07053

Creation date: 2024-06-27T15:15:01.541124
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/AS1A02_155T01_9000000966_07053cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07053cztM0_level2_quad_clean.evt
Size (bytes)547,303,68078,255,360
Size521.9 MB 74.6 MB
Events in quadrant A3,665,378459,309
Events in quadrant B4,109,878465,932
Events in quadrant C3,923,975457,102
Events in quadrant D4,343,229441,589

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163143
B0173862
C0170972
D0177592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78332032.591600%
B78332202.808630%
C78332012.566067%
D78332322.961828%

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 8658 7835 0 0 0.00% 0.00%
B 8658 7835 3 3 0.03% 0.04%
C 8658 7835 7 7 0.08% 0.09%
D 8658 7835 79 79 0.91% 1.01%

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 0 226 9027 41.43 947 926 195.5
A 12 194 8548 38.98 947 926 195.5
A 8 15 5873 25.3 947 926 195.5
B 4 239 193722 1039.6 952 927 185.5
B 0 214 167869 900.2 952 927 185.5
B 10 246 29212 152.52 952 927 185.5
C 9 68 328989 1525.88 919 924 215.0
C 13 61 7248 29.41 919 924 215.0
C 8 222 5070 19.28 919 924 215.0
D 8 195 450074 1974.75 921 891 227.5
D 12 233 206207 902.63 921 891 227.5
D 1 18 112353 490.02 921 891 227.5

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