ASTROSAT CZTI

Data Quality Report

Orbit 20716

Creation date: 2024-06-27T18:18:42.947179
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_165T07_9000003062_20716cztM0_level2.evt modeM0/AS1A05_165T07_9000003062_20716cztM0_level2_quad_clean.evt
Size (bytes)450,434,88093,421,440
Size429.6 MB 89.1 MB
Events in quadrant A3,089,480612,144
Events in quadrant B3,258,854604,589
Events in quadrant C3,093,541578,572
Events in quadrant D3,751,953574,573

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134681
B0139004
C0134971
D0154161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6586280.425144%
B6586310.470695%
C6586370.561798%
D6586310.470695%

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 7306 6587 0 0 0.00% 0.00%
B 7306 6587 8 8 0.11% 0.12%
C 7306 6587 0 0 0.00% 0.00%
D 7306 6587 24 24 0.33% 0.36%

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 16 7379 40.79 801 784 161.7
A 0 226 7010 38.51 801 784 161.7
A 3 137 6194 33.46 801 784 161.7
B 0 190 67817 443.11 791 771 151.3
B 0 229 24293 155.46 791 771 151.3
B 0 197 21999 140.3 791 771 151.3
C 14 238 117237 663.65 751 758 175.5
C 7 247 16513 89.77 751 758 175.5
C 3 233 13451 72.32 751 758 175.5
D 1 52 248111 1337.39 767 746 185.0
D 1 20 172209 927.02 767 746 185.0
D 7 38 99034 531.4 767 746 185.0

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