ASTROSAT CZTI

Data Quality Report

Orbit 08454

Creation date: 2024-06-27T15:32:56.013903
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/AS1A03_074T01_9000001192_08454cztM0_level2.evt modeM0/AS1A03_074T01_9000001192_08454cztM0_level2_quad_clean.evt
Size (bytes)457,076,16083,977,920
Size435.9 MB 80.1 MB
Events in quadrant A3,226,048515,701
Events in quadrant B3,628,999518,872
Events in quadrant C3,140,618527,903
Events in quadrant D3,390,373512,313

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138153
B0149502
C0138162
D0146172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6723851.264317%
B67231562.320393%
C6723380.565224%
D6723681.011453%

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 7878 6724 0 0 0.00% 0.00%
B 7878 6723 38 38 0.48% 0.57%
C 7878 6724 0 0 0.00% 0.00%
D 7878 6724 12 12 0.15% 0.18%

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 7832 41.38 837 819 169.5
A 12 194 7479 39.3 837 819 169.5
A 13 251 5972 30.41 837 819 169.5
B 5 255 178496 1113.28 832 812 159.6
B 4 48 57158 353.04 832 812 159.6
B 11 51 52736 325.33 832 812 159.6
C 13 61 6124 28.6 805 809 185.8
C 8 222 3243 13.1 805 809 185.8
C 3 202 2020 6.52 805 809 185.8
D 1 52 227832 1176.1 809 788 193.0
D 7 71 33414 169.0 809 788 193.0
D 14 34 21709 108.37 809 788 193.0

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