ASTROSAT CZTI

Data Quality Report

Orbit 11066

Creation date: 2024-06-27T16:07:47.112126
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/AS1A04_053T03_9000001612_11066cztM0_level2.evt modeM0/AS1A04_053T03_9000001612_11066cztM0_level2_quad_clean.evt
Size (bytes)482,765,76087,203,520
Size460.4 MB 83.2 MB
Events in quadrant A3,287,805550,304
Events in quadrant B4,058,838541,962
Events in quadrant C3,032,975546,620
Events in quadrant D3,774,581523,493

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145612
B0166612
C0139922
D0159022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6862530.772370%
B68622924.255319%
C6862220.320606%
D68631291.879644%

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 7422 6863 0 0 0.00% 0.00%
B 7422 6863 146 146 1.97% 2.13%
C 7422 6863 0 0 0.00% 0.00%
D 7423 6864 133 133 1.79% 1.94%

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 15 174 145328 878.36 803 785 164.6
A 1 162 13683 78.38 803 785 164.6
A 14 254 9947 55.68 803 785 164.6
B 4 239 803825 5244.85 793 772 153.1
B 0 245 49879 320.72 793 772 153.1
B 0 214 28640 182.01 793 772 153.1
C 13 61 5605 26.5 776 780 182.0
C 8 128 3639 15.7 776 780 182.0
C 8 112 2073 7.1 776 780 182.0
D 9 101 277954 1494.91 770 749 185.4
D 14 34 131925 707.4 770 749 185.4
D 8 195 113062 605.68 770 749 185.4

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