ASTROSAT CZTI

Data Quality Report

Orbit 06706

Creation date: 2024-06-27T15:10:38.222008
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/AS1G06_135T02_9000000918_06706cztM0_level2.evt modeM0/AS1G06_135T02_9000000918_06706cztM0_level2_quad_clean.evt
Size (bytes)579,075,84086,639,040
Size552.2 MB 82.6 MB
Events in quadrant A3,867,636549,995
Events in quadrant B3,265,550570,192
Events in quadrant C3,036,370563,832
Events in quadrant D6,898,167457,143

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163632
B0146651
C0142911
D0254871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69134476.466078%
B69131852.676117%
C6913791.142774%
D6913182126.341675%

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 7013 6914 101 101 1.44% 1.46%
B 7013 6914 15 15 0.21% 0.22%
C 7013 6914 3 3 0.04% 0.04%
D 7013 6914 1343 1343 19.15% 19.42%

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 14 111 630323 4011.93 765 747 156.9
A 8 15 196795 1249.3 765 747 156.9
A 15 234 64476 406.11 765 747 156.9
B 0 228 80347 518.75 787 766 153.4
B 11 51 68088 438.84 787 766 153.4
B 4 170 28524 180.94 787 766 153.4
C 9 247 65312 365.85 758 761 176.4
C 13 61 5983 29.6 758 761 176.4
C 8 128 5328 25.88 758 761 176.4
D 2 33 4108837 25765.29 641 617 159.4
D 8 195 204938 1281.43 641 617 159.4
D 2 14 110565 689.55 641 617 159.4

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