ASTROSAT CZTI

Data Quality Report

Orbit 10044

Creation date: 2024-06-27T15:54:10.003810
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/AS1A03_052T01_9000001436_10044cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10044cztM0_level2_quad_clean.evt
Size (bytes)493,799,040101,615,040
Size470.9 MB 96.9 MB
Events in quadrant A3,869,416668,976
Events in quadrant B3,710,683675,899
Events in quadrant C3,158,526653,609
Events in quadrant D3,773,516624,230

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160053
B0152072
C0137042
D0153992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65221051.609936%
B65221241.901257%
C6522661.011960%
D65221432.192579%

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 7782 6522 0 0 0.00% 0.00%
B 7782 6522 32 32 0.41% 0.49%
C 7782 6522 0 0 0.00% 0.00%
D 7782 6522 65 65 0.84% 1.00%

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 8 15 606680 3594.84 836 821 168.5
A 15 239 23722 135.88 836 821 168.5
A 15 174 13896 77.58 836 821 168.5
B 4 81 310131 1967.51 833 815 157.2
B 10 247 59550 373.6 833 815 157.2
B 0 214 32534 201.76 833 815 157.2
C 14 67 41553 219.62 798 803 185.5
C 13 61 6119 28.65 798 803 185.5
C 8 222 4811 21.6 798 803 185.5
D 12 233 199925 922.66 795 778 215.8
D 7 71 157969 728.28 795 778 215.8
D 8 195 148620 684.96 795 778 215.8

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