ASTROSAT CZTI

Data Quality Report

Orbit 44912

Creation date: 2024-06-27T23:07:56.188977
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/AS1A13_017T02_9000006032_44912cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44912cztM0_level2_quad_clean.evt
Size (bytes)618,624,000118,114,560
Size590.0 MB 112.6 MB
Events in quadrant A6,362,567783,176
Events in quadrant B4,493,226814,614
Events in quadrant C3,647,813809,699
Events in quadrant D7,826,569657,008

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243872
B0183102
C0159172
D0284384

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73474365.934395%
B73473334.532462%
C73471241.687764%
D7346112715.341683%

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 7777 7348 69 69 0.89% 0.94%
B 7777 7348 67 67 0.86% 0.91%
C 7777 7348 19 19 0.24% 0.26%
D 7776 7347 698 698 8.98% 9.50%

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 10 83 2736969 15205.19 858 840 179.9
A 13 248 254848 1411.57 858 840 179.9
A 0 247 23036 123.35 858 840 179.9
B 5 172 209467 1221.03 865 839 170.9
B 3 112 183946 1071.66 865 839 170.9
B 0 190 124398 723.15 865 839 170.9
C 15 208 106600 520.3 858 863 203.2
C 12 2 74734 363.5 858 863 203.2
C 12 250 29090 138.9 858 863 203.2
D 1 52 2382366 11488.17 809 785 207.3
D 12 33 544837 2624.37 809 785 207.3
D 13 249 372274 1791.97 809 785 207.3

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