ASTROSAT CZTI

Data Quality Report

Orbit 43739

Creation date: 2024-06-27T22:55:12.700577
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_003T01_9000005902_43739cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43739cztM0_level2_quad_clean.evt
Size (bytes)619,295,040126,838,080
Size590.6 MB 121.0 MB
Events in quadrant A4,826,170866,992
Events in quadrant B5,326,144853,915
Events in quadrant C4,924,564850,284
Events in quadrant D7,241,161724,927

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194781
B0212381
C0200281
D0269871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78231181.508373%
B78235236.685415%
C78231982.530998%
D78237319.344241%

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 7823 7823 16 16 0.20% 0.20%
B 7823 7823 283 283 3.62% 3.62%
C 7823 7823 155 155 1.98% 1.98%
D 7823 7823 488 488 6.24% 6.24%

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 941572 4943.8 917 898 190.3
A 13 248 140354 732.92 917 898 190.3
A 15 223 115369 601.61 917 898 190.3
B 5 235 1095453 6222.9 890 863 175.9
B 0 200 569190 3231.02 890 863 175.9
B 5 255 34652 192.1 890 863 175.9
C 15 158 503805 2380.4 893 897 211.3
C 15 174 421590 1991.25 893 897 211.3
C 14 254 198062 933.23 893 897 211.3
D 1 52 584987 2676.57 866 843 218.2
D 5 235 457037 2090.3 866 843 218.2
D 8 48 437314 1999.93 866 843 218.2

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