ASTROSAT CZTI

Data Quality Report

Orbit 17339

Creation date: 2024-06-27T17:35:10.174280
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/AS1A05_169T01_9000002558_17339cztM0_level2.evt modeM0/AS1A05_169T01_9000002558_17339cztM0_level2_quad_clean.evt
Size (bytes)481,780,80085,262,400
Size459.5 MB 81.3 MB
Events in quadrant A3,434,691551,010
Events in quadrant B3,515,284552,857
Events in quadrant C3,624,001518,833
Events in quadrant D3,583,703514,449

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143632
B0146262
C0149943
D0150612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63731612.526283%
B63731822.855798%
C63722373.719397%
D63731722.698886%

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 8833 6373 0 0 0.00% 0.00%
B 8833 6374 0 0 0.00% 0.00%
C 8832 6373 8 8 0.09% 0.13%
D 8833 6374 30 30 0.34% 0.47%

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 0 226 7791 38.93 893 876 177.6
A 12 194 6410 31.15 893 876 177.6
A 3 137 6389 31.04 893 876 177.6
B 0 230 22837 132.53 886 867 165.8
B 12 111 19752 113.92 886 867 165.8
B 11 111 17491 100.28 886 867 165.8
C 3 233 189863 968.58 844 850 195.1
C 14 238 132166 672.92 844 850 195.1
C 5 112 11365 53.88 844 850 195.1
D 5 222 301882 1457.13 852 829 206.6
D 2 152 44420 210.99 852 829 206.6
D 2 120 22069 102.8 852 829 206.6

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