ASTROSAT CZTI

Data Quality Report

Orbit 11367

Creation date: 2024-06-27T16:11:54.904854
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/AS1G08_062T01_9000001660_11367cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11367cztM0_level2_quad_clean.evt
Size (bytes)583,119,36080,280,000
Size556.1 MB 76.6 MB
Events in quadrant A4,414,829478,946
Events in quadrant B5,061,563465,838
Events in quadrant C3,500,974485,707
Events in quadrant D4,160,046464,723

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183542
B0201611
C0158451
D0178201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76941191.546660%
B76944716.121653%
C7694630.818820%
D76942313.002339%

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 7824 7696 0 0 0.00% 0.00%
B 7824 7696 206 206 2.63% 2.68%
C 7824 7696 1 1 0.01% 0.01%
D 7824 7696 125 125 1.60% 1.62%

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 881499 4756.4 899 876 185.1
A 1 162 22159 114.95 899 876 185.1
A 1 178 13073 65.88 899 876 185.1
B 4 239 685987 4020.53 891 868 170.4
B 3 64 414741 2428.76 891 868 170.4
B 7 220 224954 1315.02 891 868 170.4
C 8 128 13276 59.3 889 894 208.8
C 8 112 7440 31.35 889 894 208.8
C 14 234 6904 28.78 889 894 208.8
D 10 253 427937 1998.35 864 840 213.7
D 2 120 120337 559.12 864 840 213.7
D 13 104 94364 437.59 864 840 213.7

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