ASTROSAT CZTI

Data Quality Report

Orbit 25109

Creation date: 2024-06-27T19:13:57.547642
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_012T06_9000003674_25109cztM0_level2.evt modeM0/AS1C05_012T06_9000003674_25109cztM0_level2_quad_clean.evt
Size (bytes)517,622,400103,766,400
Size493.6 MB 99.0 MB
Events in quadrant A3,220,409692,234
Events in quadrant B3,390,725698,684
Events in quadrant C3,438,189662,980
Events in quadrant D5,173,538622,791

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139620
B0143930
C0145250
D0198980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6687460.687902%
B6687520.777628%
C6687921.375804%
D66874727.058472%

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 7717 6687 0 0 0.00% 0.00%
B 7717 6687 0 0 0.00% 0.00%
C 7717 6688 7 7 0.09% 0.10%
D 7717 6688 325 325 4.21% 4.86%

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 11429 63.28 835 816 167.7
A 3 137 7298 38.65 835 816 167.7
A 0 226 7158 37.82 835 816 167.7
B 0 189 59555 379.42 826 806 154.8
B 0 190 52238 332.16 826 806 154.8
B 4 80 20056 124.32 826 806 154.8
C 14 238 127732 688.99 795 802 184.2
C 2 16 112759 607.71 795 802 184.2
C 7 247 73519 394.72 795 802 184.2
D 12 33 933381 4904.95 785 761 190.1
D 1 52 738297 3878.94 785 761 190.1
D 8 195 379342 1991.08 785 761 190.1

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