ASTROSAT CZTI

Data Quality Report

Orbit 16418

Creation date: 2024-06-27T17:22:24.634765
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/AS1A05_069T01_9000002424_16418cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16418cztM0_level2_quad_clean.evt
Size (bytes)682,358,40098,231,040
Size650.7 MB 93.7 MB
Events in quadrant A4,154,511609,531
Events in quadrant B4,592,654617,228
Events in quadrant C4,347,038589,586
Events in quadrant D6,989,666562,475

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180183
B0190092
C0183992
D0267122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85794395.117147%
B85795156.003031%
C85794715.490150%
D85795466.364378%

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 9180 8581 0 0 0.00% 0.00%
B 9180 8581 12 12 0.13% 0.14%
C 9180 8582 0 0 0.00% 0.00%
D 9180 8581 226 226 2.46% 2.63%

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 15 174 34951 155.54 1069 1042 218.0
A 0 226 9467 38.64 1069 1042 218.0
A 12 194 7898 31.45 1069 1042 218.0
B 15 35 146757 704.09 1070 1039 207.0
B 4 173 72332 344.48 1070 1039 207.0
B 0 198 55777 264.49 1070 1039 207.0
C 14 238 156817 647.47 1027 1031 240.6
C 3 233 118552 488.44 1027 1031 240.6
C 7 247 60936 248.97 1027 1031 240.6
D 1 20 2474419 9816.06 1031 998 252.0
D 12 218 446013 1766.09 1031 998 252.0
D 1 52 65560 256.22 1031 998 252.0

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