ASTROSAT CZTI

Data Quality Report

Orbit 32251

Creation date: 2024-06-27T20:38:05.592109
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/AS1T04_054T01_9000004694_32251cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32251cztM0_level2_quad_clean.evt
Size (bytes)573,226,560102,686,400
Size546.7 MB 97.9 MB
Events in quadrant A3,221,328690,914
Events in quadrant B5,298,864699,378
Events in quadrant C3,621,470661,206
Events in quadrant D4,795,009621,214

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133703
B0199152
C0145882
D0184282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6265420.670391%
B62651782.841181%
C62652323.703113%
D62652053.272147%

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 7600 6266 0 0 0.00% 0.00%
B 7600 6266 17 17 0.22% 0.27%
C 7600 6266 54 54 0.71% 0.86%
D 7600 6266 118 118 1.55% 1.88%

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 6 16076 92.87 826 813 164.4
A 14 238 15849 91.49 826 813 164.4
A 13 254 11852 67.17 826 813 164.4
B 6 159 1729000 11262.7 824 807 153.4
B 4 80 227898 1479.96 824 807 153.4
B 0 245 28508 180.53 824 807 153.4
C 0 10 242409 1313.12 794 801 184.0
C 14 238 140275 758.03 794 801 184.0
C 3 233 62995 338.02 794 801 184.0
D 8 195 1307284 7026.78 783 764 185.9
D 12 233 219254 1175.09 783 764 185.9
D 13 249 201017 1077.01 783 764 185.9

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