ASTROSAT CZTI

Data Quality Report

Orbit 10286

Creation date: 2024-06-27T15:57:27.098077
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_072T01_9000001484_10286cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10286cztM0_level2_quad_clean.evt
Size (bytes)524,301,12075,951,360
Size500.0 MB 72.4 MB
Events in quadrant A3,292,145468,543
Events in quadrant B3,770,221471,776
Events in quadrant C3,303,571461,352
Events in quadrant D5,040,825413,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143183
B0156782
C0146032
D0198202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6941370.533064%
B6941841.210200%
C6941690.994093%
D69415107.347644%

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 8841 6943 3 3 0.03% 0.04%
B 8841 6943 31 31 0.35% 0.45%
C 8841 6943 45 45 0.51% 0.65%
D 8841 6943 454 454 5.14% 6.54%

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 15 42972 251.26 825 809 167.8
A 8 5 30971 179.75 825 809 167.8
A 3 1 25129 144.93 825 809 167.8
B 4 239 396367 2478.89 831 811 159.6
B 10 247 47169 290.52 831 811 159.6
B 11 51 30132 183.75 831 811 159.6
C 4 254 195530 1052.92 794 801 184.9
C 14 234 7977 38.8 794 801 184.9
C 13 61 6006 28.14 794 801 184.9
D 13 104 585033 2839.16 763 748 205.8
D 12 233 565824 2745.82 763 748 205.8
D 2 16 532378 2583.3 763 748 205.8

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