ASTROSAT CZTI

Data Quality Report

Orbit 28616

Creation date: 2024-06-27T19:54:02.070821
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/AS1A10_045T06_9000004108_28616cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28616cztM0_level2_quad_clean.evt
Size (bytes)473,996,16082,895,040
Size452.0 MB 79.1 MB
Events in quadrant A3,092,328537,623
Events in quadrant B3,149,190543,211
Events in quadrant C3,178,744521,517
Events in quadrant D4,543,153504,325

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124101
B0126001
C0127162
D0177321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5771510.883729%
B5772530.918226%
C57711362.356611%
D57711853.205684%

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 7061 5771 0 0 0.00% 0.00%
B 7062 5772 3 3 0.04% 0.05%
C 7061 5771 0 0 0.00% 0.00%
D 7061 5771 115 115 1.63% 1.99%

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 9293 53.2 800 785 159.9
A 15 47 7230 40.3 800 785 159.9
A 3 137 7110 39.55 800 785 159.9
B 10 245 44016 295.56 779 761 146.3
B 15 33 20197 132.81 779 761 146.3
B 12 111 17241 112.61 779 761 146.3
C 14 238 146647 831.98 761 768 175.3
C 14 254 37247 208.05 761 768 175.3
C 7 247 22911 126.29 761 768 175.3
D 1 52 807886 4435.49 771 754 182.0
D 8 195 756881 4155.2 771 754 182.0
D 2 250 40127 216.37 771 754 182.0

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