ASTROSAT CZTI

Data Quality Report

Orbit 29389

Creation date: 2024-06-27T20:03:27.590346
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_101T19_9000004228_29389cztM0_level2.evt modeM0/AS1A10_101T19_9000004228_29389cztM0_level2_quad_clean.evt
Size (bytes)964,275,84079,056,000
Size919.6 MB 75.4 MB
Events in quadrant A4,423,165486,021
Events in quadrant B4,069,187497,584
Events in quadrant C4,811,851482,885
Events in quadrant D15,373,071384,754

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180452
B0169332
C0194632
D0510502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77902413.093710%
B77902142.747112%
C77913564.569375%
D7791470360.364523%

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 8325 7792 51 51 0.61% 0.65%
B 8325 7792 9 9 0.11% 0.12%
C 8326 7793 5 5 0.06% 0.06%
D 8326 7793 4416 4416 53.04% 56.67%

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 1 113 515589 2528.7 1002 979 203.5
A 14 235 24143 113.82 1002 979 203.5
A 13 170 19224 89.65 1002 979 203.5
B 0 229 63502 328.08 992 967 190.6
B 0 190 25967 131.16 992 967 190.6
B 5 255 25852 130.56 992 967 190.6
C 3 233 669504 2953.65 958 965 226.3
C 10 9 178907 786.16 958 965 226.3
C 14 238 159667 701.16 958 965 226.3
D 12 33 5765259 33712.45 718 700 171.0
D 8 195 4467151 26120.82 718 700 171.0
D 1 52 1991381 11641.96 718 700 171.0

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