ASTROSAT CZTI

Data Quality Report

Orbit 28114

Creation date: 2024-06-27T19:48:13.287779
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_024T01_9000004062_28114cztM0_level2.evt modeM0/AS1A10_024T01_9000004062_28114cztM0_level2_quad_clean.evt
Size (bytes)551,324,16092,859,840
Size525.8 MB 88.6 MB
Events in quadrant A3,127,218609,158
Events in quadrant B3,291,291606,183
Events in quadrant C3,249,852582,660
Events in quadrant D6,581,391554,000

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136500
B0140290
C0140980
D0242930

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6605791.196064%
B6606921.392673%
C66061321.998183%
D66065308.023009%

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 6995 6607 0 0 0.00% 0.00%
B 6996 6608 6 6 0.09% 0.09%
C 6996 6608 10 10 0.14% 0.15%
D 6996 6607 470 470 6.72% 7.11%

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 5 203 25126 150.86 803 787 161.3
A 13 254 11111 63.99 803 787 161.3
A 3 137 7540 41.86 803 787 161.3
B 10 245 37670 245.05 791 772 150.6
B 0 245 34164 221.77 791 772 150.6
B 0 190 29011 187.54 791 772 150.6
C 14 238 121521 680.88 756 760 177.4
C 2 16 116955 655.14 756 760 177.4
C 3 233 57189 318.16 756 760 177.4
D 1 52 1765268 9813.47 747 727 179.8
D 7 223 1382438 7684.36 747 727 179.8
D 2 250 307250 1704.72 747 727 179.8

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