ASTROSAT CZTI

Data Quality Report

Orbit 46314

Creation date: 2024-06-27T23:21:35.841811
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/AS1T05_200T01_9000006196_46314cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46314cztM0_level2_quad_clean.evt
Size (bytes)464,840,640113,339,520
Size443.3 MB 108.1 MB
Events in quadrant A6,104,595754,531
Events in quadrant B3,760,145788,619
Events in quadrant C3,166,800750,580
Events in quadrant D3,672,208686,082

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218962
B0151862
C0138132
D0152712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64822724.196236%
B64822193.378587%
C6482861.326751%
D64821572.422092%

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 7642 6483 22 22 0.29% 0.34%
B 7642 6483 91 91 1.19% 1.40%
C 7642 6483 14 14 0.18% 0.22%
D 7642 6483 61 61 0.80% 0.94%

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 10 83 3080020 19191.97 777 759 160.4
A 13 248 12778 74.91 777 759 160.4
A 13 254 11593 67.52 777 759 160.4
B 5 255 245563 1629.15 771 748 150.3
B 4 171 226639 1503.22 771 748 150.3
B 3 112 119974 793.41 771 748 150.3
C 12 2 106511 591.71 764 771 178.7
C 11 16 38098 208.88 764 771 178.7
C 12 249 18128 97.13 764 771 178.7
D 1 52 500938 2628.85 761 738 190.3
D 2 249 72923 379.37 761 738 190.3
D 5 32 53633 277.99 761 738 190.3

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