ASTROSAT CZTI

Data Quality Report

Orbit 10942

Creation date: 2024-06-27T16:06:00.234147
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/AS1C03_013T01_9000001586_10942cztM0_level2.evt modeM0/AS1C03_013T01_9000001586_10942cztM0_level2_quad_clean.evt
Size (bytes)552,579,84062,066,880
Size527.0 MB 59.2 MB
Events in quadrant A3,464,834375,350
Events in quadrant B4,707,498366,081
Events in quadrant C3,055,174374,409
Events in quadrant D5,088,404331,559

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139272
B0179031
C0127261
D0190021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6187991.600129%
B61874747.661225%
C6187330.533376%
D618767710.942298%

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 7502 6188 21 21 0.28% 0.34%
B 7502 6188 273 273 3.64% 4.41%
C 7502 6188 0 0 0.00% 0.00%
D 7502 6188 522 522 6.96% 8.44%

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 5 267750 1618.15 814 798 165.0
A 11 29 27450 161.55 814 798 165.0
A 8 15 26893 158.18 814 798 165.0
B 4 239 1470792 9921.6 788 771 148.2
B 0 214 49725 330.4 788 771 148.2
B 0 219 25939 169.87 788 771 148.2
C 13 61 5773 27.85 782 787 179.1
C 8 222 2566 9.94 782 787 179.1
C 3 202 2097 7.32 782 787 179.1
D 1 52 1416868 7990.89 738 720 177.2
D 5 222 621583 3503.34 738 720 177.2
D 5 97 49266 273.93 738 720 177.2

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