ASTROSAT CZTI

Data Quality Report

Orbit 31007

Creation date: 2024-06-27T20:22:13.305162
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/AS1A10_071T52_9000004480_31007cztM0_level2.evt modeM0/AS1A10_071T52_9000004480_31007cztM0_level2_quad_clean.evt
Size (bytes)548,153,28084,329,280
Size522.8 MB 80.4 MB
Events in quadrant A3,155,140553,261
Events in quadrant B5,124,698560,987
Events in quadrant C3,940,215509,256
Events in quadrant D3,960,787496,944

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130522
B0192372
C0155602
D0156762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6204220.354610%
B6204911.466796%
C62042844.577692%
D62041963.159252%

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 7504 6205 0 0 0.00% 0.00%
B 7504 6205 4 4 0.05% 0.06%
C 7504 6205 162 162 2.16% 2.61%
D 7504 6205 195 195 2.60% 3.14%

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 13 254 11927 67.96 817 805 163.7
A 3 137 7842 43.0 817 805 163.7
A 0 226 7118 38.57 817 805 163.7
B 6 159 1795420 11621.88 816 798 154.4
B 0 230 49817 317.44 816 798 154.4
B 0 190 41101 261.0 816 798 154.4
C 0 10 786279 4403.16 764 773 178.4
C 14 238 125568 699.54 764 773 178.4
C 9 54 14828 78.79 764 773 178.4
D 8 195 793783 4337.84 766 748 182.8
D 6 219 85069 461.23 766 748 182.8
D 13 174 49388 266.06 766 748 182.8

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