ASTROSAT CZTI

Data Quality Report

Orbit 22586

Creation date: 2024-06-27T18:43:13.285246
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/AS1C05_001T01_9000003354_22586cztM0_level2.evt modeM0/AS1C05_001T01_9000003354_22586cztM0_level2_quad_clean.evt
Size (bytes)138,435,84037,319,040
Size132.0 MB 35.6 MB
Events in quadrant A931,460252,610
Events in quadrant B960,607256,299
Events in quadrant C952,998240,037
Events in quadrant D1,208,017234,481

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041931
B042221
C042001
D050201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2015512.531017%
B2015703.473945%
C2015743.672457%
D2015904.466501%

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 2410 2016 0 0 0.00% 0.00%
B 2410 2016 0 0 0.00% 0.00%
C 2410 2016 0 0 0.00% 0.00%
D 2410 2016 5 5 0.21% 0.25%

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 11 47 3479 64.08 240 235 50.6
A 13 254 3312 60.79 240 235 50.6
A 3 137 2167 38.17 240 235 50.6
B 12 111 6054 119.93 243 236 48.5
B 11 111 4979 97.77 243 236 48.5
B 14 111 4504 87.98 243 236 48.5
C 14 238 36426 634.35 234 235 57.1
C 13 61 1658 24.94 234 235 57.1
C 8 128 876 11.24 234 235 57.1
D 12 227 269756 4655.16 232 224 57.9
D 1 52 50695 871.7 232 224 57.9
D 15 0 9818 165.7 232 224 57.9

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