ASTROSAT CZTI

Data Quality Report

Orbit 28037

Creation date: 2024-06-27T19:47:21.220704
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/AS1A10_048T02_9000004050_28037cztM0_level2.evt modeM0/AS1A10_048T02_9000004050_28037cztM0_level2_quad_clean.evt
Size (bytes)575,573,76069,526,080
Size548.9 MB 66.3 MB
Events in quadrant A3,554,247426,137
Events in quadrant B3,591,139432,921
Events in quadrant C3,746,501413,425
Events in quadrant D6,116,221396,102

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143930
B0146060
C0153630
D0227440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62491071.712274%
B62491211.936310%
C62491943.104497%
D624962910.065610%

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 7574 6249 3 3 0.04% 0.05%
B 7574 6249 1 1 0.01% 0.02%
C 7574 6249 1 1 0.01% 0.02%
D 7574 6249 528 528 6.97% 8.45%

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 13 15634 82.43 916 902 178.7
A 7 16 11053 56.79 916 902 178.7
A 13 254 9784 49.69 916 902 178.7
B 12 111 20171 113.68 915 896 169.6
B 11 111 17943 100.54 915 896 169.6
B 14 111 17736 99.32 915 896 169.6
C 14 238 146637 716.27 888 898 203.5
C 3 233 134369 655.98 888 898 203.5
C 10 22 8727 38.48 888 898 203.5
D 1 52 1819991 8948.32 870 851 203.3
D 8 195 1011872 4973.2 870 851 203.3
D 2 234 20709 97.68 870 851 203.3

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