ASTROSAT CZTI

Data Quality Report

Orbit 09703

Creation date: 2024-06-27T15:49:50.380190
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/AS1A03_084T01_9000001382_09703cztM0_level2.evt modeM0/AS1A03_084T01_9000001382_09703cztM0_level2_quad_clean.evt
Size (bytes)142,557,12036,570,240
Size136.0 MB 34.9 MB
Events in quadrant A1,016,344240,676
Events in quadrant B999,237246,455
Events in quadrant C908,433242,389
Events in quadrant D1,254,354231,722

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041940
B042370
C040890
D050940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200710.049826%
B200730.149477%
C200730.149477%
D2007351.743896%

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 2007 2007 0 0 0.00% 0.00%
B 2007 2007 0 0 0.00% 0.00%
C 2007 2007 1 1 0.05% 0.05%
D 2007 2007 25 25 1.25% 1.25%

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 1 162 49406 968.2 236 231 50.8
A 1 178 17888 347.65 236 231 50.8
A 1 161 15861 307.74 236 231 50.8
B 0 214 42101 888.05 233 227 47.2
B 0 187 22595 474.37 233 227 47.2
B 0 229 10779 223.78 233 227 47.2
C 9 237 10370 187.47 224 225 54.1
C 14 234 10251 185.28 224 225 54.1
C 10 22 4722 83.1 224 225 54.1
D 1 52 357757 5987.58 226 219 59.7
D 12 233 13430 221.24 226 219 59.7
D 2 234 11000 180.55 226 219 59.7

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