ASTROSAT CZTI

Data Quality Report

Orbit 31416

Creation date: 2024-06-27T20:28:14.499256
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/AS1T04_026T01_9000004560_31416cztM0_level2.evt modeM0/AS1T04_026T01_9000004560_31416cztM0_level2_quad_clean.evt
Size (bytes)653,224,32093,977,280
Size623.0 MB 89.6 MB
Events in quadrant A3,799,532592,604
Events in quadrant B5,954,537592,724
Events in quadrant C4,699,345564,011
Events in quadrant D4,804,346557,187

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161430
B0236430
C0187260
D0191260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77532583.327744%
B77533854.965820%
C77535296.823165%
D77543043.920557%

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 7753 7753 0 0 0.00% 0.00%
B 7753 7753 0 0 0.00% 0.00%
C 7753 7753 102 102 1.32% 1.32%
D 7754 7754 60 60 0.77% 0.77%

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 13 254 12212 56.8 985 962 198.1
A 3 137 10785 49.6 985 962 198.1
A 0 226 8305 37.08 985 962 198.1
B 6 159 2106346 11303.38 959 931 186.3
B 0 190 46774 246.12 959 931 186.3
B 12 111 24333 125.64 959 931 186.3
C 3 233 519935 2349.03 930 935 220.9
C 10 22 337573 1523.65 930 935 220.9
C 14 238 169541 763.12 930 935 220.9
D 8 195 942812 4117.09 954 927 228.8
D 12 218 171831 747.04 954 927 228.8
D 2 250 76985 332.46 954 927 228.8

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