ASTROSAT CZTI

Data Quality Report

Orbit 30184

Creation date: 2024-06-27T20:11:57.856044
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/AS1A10_102T01_9000004340_30184cztM0_level2.evt modeM0/AS1A10_102T01_9000004340_30184cztM0_level2_quad_clean.evt
Size (bytes)917,691,84077,803,200
Size875.2 MB 74.2 MB
Events in quadrant A3,767,780482,471
Events in quadrant B5,812,438479,669
Events in quadrant C13,100,067413,594
Events in quadrant D4,601,468453,023

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159242
B0230552
C0441922
D0185872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75662923.859371%
B75663965.233941%
C7566376649.775311%
D75663023.991541%

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 8591 7566 0 0 0.00% 0.00%
B 8591 7566 0 0 0.00% 0.00%
C 8591 7566 2486 2486 28.94% 32.86%
D 8591 7568 74 74 0.86% 0.98%

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 8 192 23329 113.08 970 950 197.9
A 13 254 12260 57.15 970 950 197.9
A 3 137 10388 47.69 970 950 197.9
B 6 159 2049078 10910.93 953 925 187.7
B 12 111 23991 122.87 953 925 187.7
B 11 111 22228 113.48 953 925 187.7
C 3 233 9841680 52470.75 788 792 187.5
C 14 238 136547 723.83 788 792 187.5
C 14 254 22195 114.12 788 792 187.5
D 1 52 554170 2443.52 934 913 226.4
D 8 195 200791 882.78 934 913 226.4
D 13 104 121414 532.21 934 913 226.4

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