ASTROSAT CZTI

Data Quality Report

Orbit 16463

Creation date: 2024-06-27T17:23:04.084244
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/AS1C04_007T02_9000002432_16463cztM0_level2.evt modeM0/AS1C04_007T02_9000002432_16463cztM0_level2_quad_clean.evt
Size (bytes)543,335,04089,026,560
Size518.2 MB 84.9 MB
Events in quadrant A3,841,114556,437
Events in quadrant B4,464,909563,785
Events in quadrant C3,603,218541,696
Events in quadrant D4,052,524527,991

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159532
B0177581
C0151231
D0168361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72661992.738783%
B72662313.179191%
C72661492.050647%
D72662162.972750%

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 7602 7267 56 56 0.74% 0.77%
B 7602 7267 51 51 0.67% 0.70%
C 7602 7267 1 1 0.01% 0.01%
D 7602 7267 98 98 1.29% 1.35%

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 15 174 394452 2152.23 895 880 182.9
A 13 248 8162 39.82 895 880 182.9
A 0 226 7701 37.3 895 880 182.9
B 15 35 648967 3677.56 892 869 176.2
B 4 173 111903 630.05 892 869 176.2
B 0 198 57757 322.8 892 869 176.2
C 14 238 130536 641.1 854 862 202.3
C 3 233 106976 524.62 854 862 202.3
C 0 207 19951 94.37 854 862 202.3
D 2 33 297501 1388.73 863 837 213.6
D 1 52 267577 1248.65 863 837 213.6
D 5 222 148559 691.51 863 837 213.6

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