ASTROSAT CZTI

Data Quality Report

Orbit 29703

Creation date: 2024-06-27T20:07:00.048034
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_007T01_9000004276_29703cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29703cztM0_level2_quad_clean.evt
Size (bytes)563,664,960100,382,400
Size537.6 MB 95.7 MB
Events in quadrant A3,151,890662,913
Events in quadrant B5,201,081675,437
Events in quadrant C3,771,424654,574
Events in quadrant D4,534,690622,169

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130981
B0192703
C0151751
D0176551

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6078450.740375%
B60771572.583512%
C60781242.040145%
D60782313.800592%

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 7408 6079 0 0 0.00% 0.00%
B 7407 6077 16 16 0.22% 0.26%
C 7408 6078 10 10 0.13% 0.16%
D 7408 6079 174 174 2.35% 2.86%

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 12023 69.02 817 804 162.5
A 3 137 7574 41.65 817 804 162.5
A 0 226 6820 37.01 817 804 162.5
B 6 159 1848945 12000.2 816 797 154.0
B 0 229 105636 680.73 816 797 154.0
B 15 33 21651 135.41 816 797 154.0
C 3 233 413340 2241.43 794 801 184.1
C 14 238 130503 704.7 794 801 184.1
C 10 22 112980 609.5 794 801 184.1
D 7 80 732839 3932.83 785 766 186.1
D 8 195 565615 3034.48 785 766 186.1
D 2 250 209063 1119.01 785 766 186.1

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