ASTROSAT CZTI

Data Quality Report

Orbit 04048

Creation date: 2024-06-27T14:36:45.512260
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/AS1G05_241T04_9000000518_04048cztM0_level2.evt modeM0/AS1G05_241T04_9000000518_04048cztM0_level2_quad_clean.evt
Size (bytes)433,661,76059,829,120
Size413.6 MB 57.1 MB
Events in quadrant A3,371,612345,989
Events in quadrant B3,513,364346,184
Events in quadrant C2,939,287338,984
Events in quadrant D2,873,370332,981

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139952
B0144821
C0132951
D0132901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6415801.247077%
B6415921.434139%
C6415400.623539%
D6415460.717069%

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 7435 6415 23 23 0.31% 0.36%
B 7435 6415 28 28 0.38% 0.44%
C 7435 6415 7 7 0.09% 0.11%
D 7435 6416 9 9 0.12% 0.14%

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 8 15 309221 2006.79 747 730 153.7
A 0 118 69074 444.59 747 730 153.7
A 0 50 49914 319.95 747 730 153.7
B 15 204 288647 1975.6 752 735 145.7
B 14 167 199180 1361.69 752 735 145.7
B 4 81 68602 465.69 752 735 145.7
C 9 144 59339 350.04 719 722 167.5
C 10 65 43831 257.43 719 722 167.5
C 12 4 23769 137.63 719 722 167.5
D 2 122 46723 264.78 722 701 173.8
D 2 232 45198 256.0 722 701 173.8
D 13 239 38378 216.77 722 701 173.8

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