ASTROSAT CZTI

Data Quality Report

Orbit 27232

Creation date: 2024-06-27T19:38:00.438036
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/AS1T03_243T01_9000003918_27232cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27232cztM0_level2_quad_clean.evt
Size (bytes)601,845,12098,804,160
Size574.0 MB 94.2 MB
Events in quadrant A3,784,897630,299
Events in quadrant B4,482,495630,689
Events in quadrant C3,655,383612,094
Events in quadrant D5,787,400588,392

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162360
B0181170
C0157330
D0223470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7629921.205925%
B76283384.431044%
C76281011.324069%
D76283825.007866%

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 7854 7631 24 24 0.31% 0.31%
B 7853 7630 119 119 1.52% 1.56%
C 7853 7630 1 1 0.01% 0.01%
D 7853 7630 285 285 3.63% 3.74%

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 12 96 137348 722.0 932 912 189.0
A 0 13 22555 114.53 932 912 189.0
A 8 192 18147 91.2 932 912 189.0
B 15 33 552177 3061.51 923 899 180.1
B 3 64 249728 1381.87 923 899 180.1
B 5 172 27179 145.95 923 899 180.1
C 14 238 140002 661.0 892 898 210.4
C 15 208 17006 76.54 892 898 210.4
C 8 128 13635 60.52 892 898 210.4
D 1 52 1923339 8510.86 882 861 225.9
D 2 250 199634 879.97 882 861 225.9
D 7 38 74506 326.03 882 861 225.9

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