ASTROSAT CZTI

Data Quality Report

Orbit 07141

Creation date: 2024-06-27T15:16:05.084855
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/AS1G06_051T01_9000000972_07141cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07141cztM0_level2_quad_clean.evt
Size (bytes)573,215,04081,774,720
Size546.7 MB 78.0 MB
Events in quadrant A3,862,777483,388
Events in quadrant B4,049,200490,123
Events in quadrant C3,845,005483,198
Events in quadrant D5,055,690458,913

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01694245
B01734168
C01703042
D020539111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80552443.029174%
B80452593.219391%
C80572192.718133%
D80444125.121830%

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 8566 8076 0 0 0.00% 0.00%
B 8566 8076 0 0 0.00% 0.00%
C 8566 8076 1 1 0.01% 0.01%
D 8566 8076 156 156 1.82% 1.93%

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 8 15 34394 162.53 994 972 205.6
A 0 226 9356 40.77 994 972 205.6
A 12 194 8971 38.9 994 972 205.6
B 0 214 96391 488.62 992 967 195.3
B 4 81 45519 228.13 992 967 195.3
B 0 219 39883 199.27 992 967 195.3
C 4 254 36425 157.07 965 971 225.7
C 8 128 14366 59.34 965 971 225.7
C 1 16 10981 44.35 965 971 225.7
D 2 216 783696 3247.12 962 932 241.1
D 14 34 283880 1173.75 962 932 241.1
D 12 233 116360 478.83 962 932 241.1

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