ASTROSAT CZTI

Data Quality Report

Orbit 24019

Creation date: 2024-06-27T19:01:13.333767
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_165T01_9000003558_24019cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24019cztM0_level2_quad_clean.evt
Size (bytes)556,859,520140,780,160
Size531.1 MB 134.3 MB
Events in quadrant A3,690,238955,994
Events in quadrant B3,736,888968,215
Events in quadrant C3,622,468923,898
Events in quadrant D5,306,854894,532

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160062
B0158182
C0156992
D0207682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7499560.746766%
B7499751.000133%
C74991151.533538%
D74992613.480464%

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 7914 7500 5 5 0.06% 0.07%
B 7914 7500 3 3 0.04% 0.04%
C 7914 7500 17 17 0.21% 0.23%
D 7914 7500 214 214 2.70% 2.85%

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 6 16 245843 1357.44 890 870 180.5
A 13 254 12709 65.6 890 870 180.5
A 2 250 11418 58.45 890 870 180.5
B 0 189 152208 895.65 889 866 169.0
B 0 197 39466 228.44 889 866 169.0
B 12 111 19915 112.73 889 866 169.0
C 0 239 144189 726.37 845 848 197.3
C 14 238 134154 675.52 845 848 197.3
C 10 9 21036 102.3 845 848 197.3
D 8 195 1028184 4937.87 850 821 208.1
D 1 52 485232 2328.25 850 821 208.1
D 12 218 367122 1760.57 850 821 208.1

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