ASTROSAT CZTI

Data Quality Report

Orbit 43900

Creation date: 2024-06-27T22:57:01.025629
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_009T02_9000005914_43900cztM0_level2.fits modeM0/AS1A13_009T02_9000005914_43900cztM0_level2_quad_clean.evt
Size (bytes)668,658,240131,800,320
Size637.7 MB 125.7 MB
Events in quadrant A7,316,903852,315
Events in quadrant B4,938,632915,709
Events in quadrant C5,828,318871,425
Events in quadrant D6,022,493772,161

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281740
B0203150
C0230220
D0237590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83317418.894490%
B83322793.348536%
C83322452.940470%
D83324755.700912%

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 8331 8331 546 546 6.55% 6.55%
B 8332 8332 73 73 0.88% 0.88%
C 8332 8332 187 187 2.24% 2.24%
D 8332 8332 333 333 4.00% 4.00%

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 15 223 1936040 9481.84 967 946 204.1
A 10 83 1208035 5914.66 967 946 204.1
A 15 222 328399 1604.5 967 946 204.1
B 5 235 386564 1965.23 976 943 196.2
B 0 200 192055 973.96 976 943 196.2
B 4 171 138331 700.17 976 943 196.2
C 15 158 1531999 6745.13 958 964 227.0
C 3 233 237732 1043.11 958 964 227.0
C 14 254 106406 464.54 958 964 227.0
D 5 235 492393 2016.26 955 921 243.8
D 13 187 379526 1553.22 955 921 243.8
D 13 171 239649 979.38 955 921 243.8

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