ASTROSAT CZTI

Data Quality Report

Orbit 09932

Creation date: 2024-06-27T15:52:33.668583
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_029T01_9000001416_09932cztM0_level2.evt modeM0/AS1A02_029T01_9000001416_09932cztM0_level2_quad_clean.evt
Size (bytes)576,532,80089,161,920
Size549.8 MB 85.0 MB
Events in quadrant A4,434,892545,383
Events in quadrant B3,903,913557,012
Events in quadrant C3,518,356550,577
Events in quadrant D5,079,325509,664

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186093
B0167842
C0158932
D0203372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77271491.928303%
B7727861.112980%
C7727710.918856%
D77273134.050731%

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 9512 7728 34 34 0.36% 0.44%
B 9512 7728 7 7 0.07% 0.09%
C 9512 7728 0 0 0.00% 0.00%
D 9512 7728 219 219 2.30% 2.83%

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 15 239 892577 4756.73 918 896 187.5
A 0 226 8557 40.87 918 896 187.5
A 12 194 7694 36.26 918 896 187.5
B 0 214 80876 447.52 930 908 178.7
B 4 81 79761 441.28 930 908 178.7
B 4 239 55691 306.58 930 908 178.7
C 12 4 10981 48.27 898 902 208.8
C 13 61 6795 28.22 898 902 208.8
C 0 207 2781 9.0 898 902 208.8
D 2 16 559737 2465.43 875 852 226.7
D 8 195 341293 1501.8 875 852 226.7
D 2 33 330242 1453.05 875 852 226.7

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