ASTROSAT CZTI

Data Quality Report

Orbit 32372

Creation date: 2024-06-27T20:39:28.750832
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/AS1A09_131T01_9000004702_32372cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32372cztM0_level2_quad_clean.evt
Size (bytes)654,122,880127,068,480
Size623.8 MB 121.2 MB
Events in quadrant A3,196,666873,654
Events in quadrant B6,047,207847,127
Events in quadrant C6,073,930807,710
Events in quadrant D4,020,372833,556

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143242
B0233301
C0228071
D0168211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6979961.375555%
B69795177.407938%
C6979109615.704256%
D69792183.123657%

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 7234 6980 0 0 0.00% 0.00%
B 7234 6980 268 268 3.70% 3.84%
C 7234 6980 481 481 6.65% 6.89%
D 7234 6980 105 105 1.45% 1.50%

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 19972 115.15 818 799 166.5
A 0 6 17294 99.07 818 799 166.5
A 13 254 12981 73.16 818 799 166.5
B 6 159 1937568 12792.01 791 768 151.4
B 5 172 753713 4972.99 791 768 151.4
B 0 190 108306 710.26 791 768 151.4
C 3 233 2727454 15470.85 749 754 176.2
C 14 238 152003 858.16 749 754 176.2
C 0 10 105015 591.56 749 754 176.2
D 8 195 424935 2251.82 789 765 188.4
D 1 47 163170 862.17 789 765 188.4
D 12 3 109749 578.57 789 765 188.4

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