ASTROSAT CZTI

Data Quality Report

Orbit 23052

Creation date: 2024-06-27T18:49:51.385069
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/AS1A07_054T01_9000003406_23052cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23052cztM0_level2_quad_clean.evt
Size (bytes)1,366,580,160266,497,920
Size1.3 GB 254.2 MB
Events in quadrant A8,140,1591,778,788
Events in quadrant B9,449,2651,773,752
Events in quadrant C9,202,4051,681,930
Events in quadrant D13,384,0061,601,478

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0362293
B0396953
C0388153
D0518533

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179171260.703243%
B179184742.645385%
C179184072.271459%
D1791815458.622614%

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 19882 17920 0 0 0.00% 0.00%
B 19883 17921 225 225 1.13% 1.26%
C 19883 17921 119 119 0.60% 0.66%
D 19882 17919 1250 1250 6.29% 6.98%

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 13 254 27280 59.83 2106 2058 421.6
A 3 137 18916 39.99 2106 2058 421.6
A 0 226 17897 37.57 2106 2058 421.6
B 3 64 765227 1926.32 2085 2031 396.2
B 0 190 143067 355.98 2085 2031 396.2
B 0 189 110183 272.98 2085 2031 396.2
C 10 9 685050 1474.91 2003 2012 463.1
C 14 238 319983 686.61 2003 2012 463.1
C 0 10 241651 517.46 2003 2012 463.1
D 1 52 4053391 8504.62 1953 1892 476.4
D 13 153 1217970 2552.7 1953 1892 476.4
D 13 172 173084 359.35 1953 1892 476.4

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