ASTROSAT CZTI

Data Quality Report

Orbit 43932

Creation date: 2024-06-27T22:57:21.118088
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/AS1A13_024T02_9000005918_43932cztM0_level2.fits modeM0/AS1A13_024T02_9000005918_43932cztM0_level2_quad_clean.evt
Size (bytes)1,291,032,000280,791,360
Size1.2 GB 267.8 MB
Events in quadrant A12,316,8991,887,715
Events in quadrant B10,629,4831,896,719
Events in quadrant C9,913,3491,845,495
Events in quadrant D13,539,1571,630,876

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0496854
B0437863
C0423533
D0528813

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03640
B03640
C03640
D03640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179962271.261391%
B179973922.178141%
C179973892.161471%
D1799711096.162138%

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 19701 17999 63 63 0.32% 0.35%
B 19702 18000 213 213 1.08% 1.18%
C 19702 18000 323 323 1.64% 1.79%
D 19702 18000 862 862 4.38% 4.79%

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 10 83 2938905 7338.7 1951 1913 400.2
A 15 222 1130468 2819.94 1951 1913 400.2
A 15 223 372385 925.7 1951 1913 400.2
B 5 235 1018747 2730.77 1927 1868 372.4
B 0 213 509609 1363.51 1927 1868 372.4
B 12 18 479950 1283.86 1927 1868 372.4
C 15 158 1089094 2423.87 1908 1918 448.5
C 14 254 796210 1770.88 1908 1918 448.5
C 1 241 307602 681.53 1908 1918 448.5
D 1 52 1553662 3289.37 1882 1825 471.8
D 5 235 1209855 2560.62 1882 1825 471.8
D 12 17 449886 949.74 1882 1825 471.8

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