ASTROSAT CZTI

Data Quality Report

Orbit 27265

Creation date: 2024-06-27T19:38:13.521986
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/AS1T03_243T01_9000003918_27265cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27265cztM0_level2_quad_clean.evt
Size (bytes)510,811,20072,815,040
Size487.1 MB 69.4 MB
Events in quadrant A3,351,674440,852
Events in quadrant B3,998,125442,369
Events in quadrant C3,366,574427,394
Events in quadrant D4,286,695414,728

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141900
B0161080
C0142030
D0171850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6883781.133227%
B68832513.646666%
C68831251.816069%
D68841872.716444%

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 8498 6884 1 1 0.01% 0.01%
B 8498 6884 91 91 1.07% 1.32%
C 8498 6885 0 0 0.00% 0.00%
D 8499 6886 111 111 1.31% 1.61%

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 12071 64.26 865 846 174.7
A 13 254 9253 48.13 865 846 174.7
A 3 137 8185 42.01 865 846 174.7
B 10 245 493524 2985.61 855 833 165.0
B 3 64 97681 586.88 855 833 165.0
B 0 182 24963 146.22 855 833 165.0
C 14 238 132097 673.28 828 833 195.0
C 4 224 7183 32.57 828 833 195.0
C 13 61 5649 24.7 828 833 195.0
D 1 52 991436 4867.87 825 804 203.5
D 12 233 78368 381.14 825 804 203.5
D 12 227 36942 177.58 825 804 203.5

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