ASTROSAT CZTI

Data Quality Report

Orbit 30329

Creation date: 2024-06-27T20:13:47.515663
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_071T29_9000004358_30329cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30329cztM0_level2_quad_clean.evt
Size (bytes)569,208,96088,701,120
Size542.8 MB 84.6 MB
Events in quadrant A3,937,026550,305
Events in quadrant B5,647,525554,115
Events in quadrant C3,622,613538,079
Events in quadrant D3,532,695531,147

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163622
B0224652
C0152672
D0155372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73641041.412276%
B73641792.430744%
C73641071.453015%
D7364410.556763%

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 7754 7365 16 16 0.21% 0.22%
B 7754 7365 3 3 0.04% 0.04%
C 7754 7365 0 0 0.00% 0.00%
D 7754 7365 11 11 0.14% 0.15%

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 14 239 392660 2140.42 905 886 183.0
A 5 203 29118 154.24 905 886 183.0
A 8 192 21357 111.84 905 886 183.0
B 6 159 1990946 11346.92 897 873 175.4
B 6 36 59634 335.04 897 873 175.4
B 0 190 55767 312.99 897 873 175.4
C 14 238 147157 706.84 874 877 206.9
C 3 233 39832 188.24 874 877 206.9
C 2 114 16785 76.87 874 877 206.9
D 2 250 88932 394.32 872 852 223.4
D 8 195 86985 385.6 872 852 223.4
D 2 234 29251 127.14 872 852 223.4

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