ASTROSAT CZTI

Data Quality Report

Orbit 29567

Creation date: 2024-06-27T20:05:33.159292
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/AS1C05_019T01_9000004264_29567cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29567cztM0_level2_quad_clean.evt
Size (bytes)568,272,96099,034,560
Size541.9 MB 94.4 MB
Events in quadrant A3,149,175649,208
Events in quadrant B3,221,587659,277
Events in quadrant C3,446,605615,742
Events in quadrant D6,937,226606,268

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138113
B0139582
C0145412
D0254572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6722280.416543%
B6723300.446229%
C67234606.842184%
D67234516.708315%

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 7662 6723 0 0 0.00% 0.00%
B 7663 6724 1 1 0.01% 0.01%
C 7663 6724 0 0 0.00% 0.00%
D 7663 6724 232 232 3.03% 3.45%

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 12514 71.05 812 794 165.0
A 0 13 11640 65.75 812 794 165.0
A 3 137 8108 44.34 812 794 165.0
B 0 190 22140 137.39 810 789 155.4
B 12 111 19127 118.0 810 789 155.4
B 11 111 17342 106.51 810 789 155.4
C 14 238 251830 1396.07 764 766 179.8
C 14 254 182487 1010.48 764 766 179.8
C 2 114 15733 83.23 764 766 179.8
D 12 33 2751077 14710.52 777 754 187.0
D 8 195 439858 2348.61 777 754 187.0
D 13 153 345325 1842.99 777 754 187.0

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