ASTROSAT CZTI

Data Quality Report

Orbit 47078

Creation date: 2024-06-27T23:31:27.348676
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/AS1C09_003T01_9000006298_47078cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47078cztM0_level2_quad_clean.evt
Size (bytes)666,161,280139,452,480
Size635.3 MB 133.0 MB
Events in quadrant A8,921,509925,316
Events in quadrant B5,721,535938,860
Events in quadrant C3,978,318912,282
Events in quadrant D5,352,124831,783

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0322052
B0233742
C0184172
D0223132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88533293.716254%
B88542803.162412%
C8854360.406596%
D88543373.806189%

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 10338 8855 79 79 0.76% 0.89%
B 10339 8856 114 114 1.10% 1.29%
C 10339 8856 9 9 0.09% 0.10%
D 10339 8856 155 155 1.50% 1.75%

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 10 83 4918729 24185.45 975 954 203.3
A 7 3 113623 554.1 975 954 203.3
A 14 248 44247 212.91 975 954 203.3
B 3 112 1326641 7055.97 969 938 187.9
B 5 173 193007 1022.27 969 938 187.9
B 5 172 112982 596.34 969 938 187.9
C 14 254 106855 468.96 961 965 225.8
C 3 233 81248 355.56 961 965 225.8
C 12 250 30052 128.82 961 965 225.8
D 1 52 775280 3243.86 947 916 238.7
D 1 47 457650 1913.29 947 916 238.7
D 13 249 151103 629.14 947 916 238.7

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