ASTROSAT CZTI

Data Quality Report

Orbit 04478

Creation date: 2024-06-27T14:42:39.861989
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/AS1G05_253T03_9000000562_04478cztM0_level2.evt modeM0/AS1G05_253T03_9000000562_04478cztM0_level2_quad_clean.evt
Size (bytes)32,454,7205,011,200
Size31.0 MB 4.8 MB
Events in quadrant A236,19727,813
Events in quadrant B247,21530,183
Events in quadrant C236,14230,938
Events in quadrant D228,57022,602

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128114
B0129123
C0122106
D0123117

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A065
B032
C032
D022

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01435113377
B01271611691
C01264311638
D01607015154

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A453132.869757%
B479193.966597%
C47751.048218%
D39382.035623%

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 7111 657 0 0 0.00% 0.00%
B 7101 711 0 0 0.00% 0.00%
C 7144 718 0 0 0.00% 0.00%
D 7088 582 1 1 0.01% 0.17%

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 0 13 3587 244.41 59 57 14.4
A 0 118 2984 202.66 59 57 14.4
A 15 174 1563 104.27 59 57 14.4
B 15 204 3796 260.78 61 60 14.3
B 4 80 1680 113.08 61 60 14.3
B 15 54 1409 94.16 61 60 14.3
C 8 128 765 43.76 59 59 16.1
C 13 61 434 23.24 59 59 16.1
C 14 48 422 22.5 59 59 16.1
D 13 235 14619 1040.38 49 47 14.0
D 14 34 12541 892.02 49 47 14.0
D 8 112 7650 542.82 49 47 14.0

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