ASTROSAT CZTI

Data Quality Report

Orbit 09746

Creation date: 2024-06-27T15:50:10.430386
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_114T01_9000001390_09746cztM0_level2.evt modeM0/AS1A03_114T01_9000001390_09746cztM0_level2_quad_clean.evt
Size (bytes)604,327,68088,496,640
Size576.3 MB 84.4 MB
Events in quadrant A4,186,821527,487
Events in quadrant B4,258,631537,099
Events in quadrant C4,174,630517,718
Events in quadrant D5,089,623492,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183472
B0184141
C0183481
D0208201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87185005.735260%
B87185195.953200%
C87184665.345263%
D87186427.364074%

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 8908 8719 0 0 0.00% 0.00%
B 8908 8719 0 0 0.00% 0.00%
C 8908 8719 1 1 0.01% 0.01%
D 8908 8719 150 150 1.68% 1.72%

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 13 251 12980 53.68 1085 1059 222.1
A 0 226 10117 40.79 1085 1059 222.1
A 12 194 8649 34.18 1085 1059 222.1
B 12 111 25915 117.76 1085 1054 211.1
B 0 85 22690 102.48 1085 1054 211.1
B 11 111 21397 96.36 1085 1054 211.1
C 8 128 16859 64.05 1060 1061 246.6
C 8 112 8214 29.0 1060 1061 246.6
C 13 61 8035 28.28 1060 1061 246.6
D 1 52 977655 3610.42 1040 1011 270.5
D 13 137 119555 438.23 1040 1011 270.5
D 2 234 29555 105.52 1040 1011 270.5

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