ASTROSAT CZTI

Data Quality Report

Orbit 01013

Creation date: 2024-06-27T14:06:08.808621
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/AS1P01_998T02_9000000190_01013cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01013cztM0_level2_quad_clean.evt
Size (bytes)997,217,280110,059,200
Size951.0 MB 105.0 MB
Events in quadrant A7,302,785745,192
Events in quadrant B8,138,394734,851
Events in quadrant C7,356,987717,514
Events in quadrant D6,997,950709,596

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260264
B0285571
C0261881
D0251331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6103681.114206%
B61032313.785024%
C6103570.933967%
D6104621.015727%

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 7298 6104 248 248 3.40% 4.06%
B 7298 6104 526 526 7.21% 8.62%
C 7298 6104 207 207 2.84% 3.39%
D 7299 6105 196 196 2.69% 3.21%

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 12 189 11091 20.18 1899 1913 454.8
A 15 233 7286 11.81 1899 1913 454.8
A 11 79 6404 9.87 1899 1913 454.8
B 4 200 538906 1187.94 1926 1931 452.0
B 15 22 69059 148.51 1926 1931 452.0
B 5 249 56521 120.77 1926 1931 452.0
C 15 241 297486 595.2 1790 1850 496.7
C 3 79 29338 55.34 1790 1850 496.7
C 3 111 27251 51.14 1790 1850 496.7
D 1 4 276895 515.22 1770 1828 533.9
D 9 49 29519 51.87 1770 1828 533.9
D 0 255 21710 37.24 1770 1828 533.9

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