ASTROSAT CZTI

Data Quality Report

Orbit 29498

Creation date: 2024-06-27T20:04:44.095268
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/AS1A10_064T03_9000004246_29498cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29498cztM0_level2_quad_clean.evt
Size (bytes)785,229,120124,873,920
Size748.9 MB 119.1 MB
Events in quadrant A3,184,039905,915
Events in quadrant B3,351,979933,435
Events in quadrant C3,570,530878,278
Events in quadrant D13,251,924626,710

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134022
B0139592
C0145782
D0436426

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6253420.671678%
B6253540.863585%
C62541532.446434%
D6253393362.897809%

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 7503 6254 0 0 0.00% 0.00%
B 7503 6254 6 6 0.08% 0.10%
C 7504 6255 11 11 0.15% 0.18%
D 7503 6253 3808 3808 50.75% 60.90%

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 0 13 12507 71.4 821 806 163.9
A 13 254 11783 66.98 821 806 163.9
A 3 137 7434 40.44 821 806 163.9
B 5 172 59770 389.64 823 805 151.3
B 0 190 34760 224.37 823 805 151.3
B 0 230 24988 159.8 823 805 151.3
C 3 233 188601 1025.09 796 805 183.2
C 14 238 154223 837.44 796 805 183.2
C 0 207 64130 345.66 796 805 183.2
D 8 195 7377564 49537.23 632 616 148.9
D 1 52 2368887 15903.27 632 616 148.9
D 12 33 454946 3050.89 632 616 148.9

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