ASTROSAT CZTI

Data Quality Report

Orbit 09803

Creation date: 2024-06-27T15:50:51.347692
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/AS1G05_218T01_9000001394_09803cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09803cztM0_level2_quad_clean.evt
Size (bytes)603,786,24083,736,000
Size575.8 MB 79.9 MB
Events in quadrant A3,737,708509,983
Events in quadrant B4,014,258513,097
Events in quadrant C3,686,008502,991
Events in quadrant D6,328,546477,041

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016616
B01666
C016511
D016612

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017164863
B017823967
C017294889
D0258331857

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76853955.139883%
B76604405.744125%
C76793324.323480%
D75457529.966865%

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 8566 8006 0 0 0.00% 0.00%
B 8566 8008 15 15 0.18% 0.19%
C 8565 8020 0 0 0.00% 0.00%
D 8566 7973 284 284 3.32% 3.56%

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 8691 38.68 970 948 200.2
A 12 194 8021 35.33 970 948 200.2
A 3 137 4717 18.83 970 948 200.2
B 0 214 78239 406.8 960 936 190.0
B 4 239 77506 402.94 960 936 190.0
B 4 173 25900 131.37 960 936 190.0
C 5 128 12024 50.11 936 941 221.2
C 14 234 8347 33.49 936 941 221.2
C 13 61 7043 27.59 936 941 221.2
D 1 52 2557044 10754.16 904 881 237.7
D 2 152 158677 663.87 904 881 237.7
D 9 85 43225 178.15 904 881 237.7

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