ASTROSAT CZTI

Data Quality Report

Orbit 05446

Creation date: 2024-06-27T14:55:18.834763
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_204T01_9000000688_05446cztM0_level2.evt modeM0/AS1G05_204T01_9000000688_05446cztM0_level2_quad_clean.evt
Size (bytes)590,837,760121,809,600
Size563.5 MB 116.2 MB
Events in quadrant A3,468,100797,813
Events in quadrant B4,360,572793,902
Events in quadrant C3,415,593809,215
Events in quadrant D6,120,533745,864

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01626932
B01884850
C01611641
D023849145

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7804490.627883%
B77982072.654527%
C7799340.435953%
D77895416.945693%

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 7954 7821 3 3 0.04% 0.04%
B 7954 7821 25 25 0.31% 0.32%
C 7954 7822 0 0 0.00% 0.00%
D 7954 7821 540 540 6.79% 6.90%

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 50 46273 251.8 880 858 180.4
A 13 6 12903 66.78 880 858 180.4
A 10 229 12450 64.27 880 858 180.4
B 15 204 574066 3365.51 889 867 170.3
B 4 48 112661 656.39 889 867 170.3
B 11 51 88923 517.02 889 867 170.3
C 8 128 11565 53.63 865 867 199.5
C 12 4 7215 31.82 865 867 199.5
C 13 61 7050 31.0 865 867 199.5
D 2 33 2619966 12812.47 840 813 204.4
D 2 152 113179 549.68 840 813 204.4
D 4 95 80612 390.36 840 813 204.4

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