ASTROSAT CZTI

Data Quality Report

Orbit 26029

Creation date: 2024-06-27T19:24:02.740640
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/AS1A09_033T02_9000003762_26029cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26029cztM0_level2_quad_clean.evt
Size (bytes)498,565,44082,454,400
Size475.5 MB 78.6 MB
Events in quadrant A3,559,631506,868
Events in quadrant B3,627,914511,097
Events in quadrant C3,575,863488,331
Events in quadrant D3,847,800490,329

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149310
B0150890
C0149270
D0159920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71821061.475912%
B71821271.768310%
C71821452.018936%
D7182851.183514%

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 7722 7182 0 0 0.00% 0.00%
B 7722 7182 2 2 0.03% 0.03%
C 7722 7182 0 0 0.00% 0.00%
D 7722 7182 6 6 0.08% 0.08%

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 22819 119.03 917 899 184.2
A 13 254 10468 51.96 917 899 184.2
A 3 137 8531 41.44 917 899 184.2
B 0 190 43703 245.82 903 879 174.2
B 0 229 35189 196.95 903 879 174.2
B 12 111 21027 115.65 903 879 174.2
C 14 238 141022 688.81 872 878 203.5
C 3 233 38409 184.47 872 878 203.5
C 13 61 6174 26.03 872 878 203.5
D 1 52 228316 1004.42 887 863 226.5
D 7 223 132758 582.44 887 863 226.5
D 1 3 50545 219.39 887 863 226.5

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