ASTROSAT CZTI

Data Quality Report

Orbit 14160

Creation date: 2024-06-27T16:51:14.692273
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/AS1G08_045T01_9000002092_14160cztM0_level2.evt modeM0/AS1G08_045T01_9000002092_14160cztM0_level2_quad_clean.evt
Size (bytes)730,391,040101,692,800
Size696.6 MB 97.0 MB
Events in quadrant A3,939,902645,703
Events in quadrant B7,010,399662,755
Events in quadrant C4,153,475624,243
Events in quadrant D6,473,320588,655

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169573
B0262892
C0173302
D0248272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8034550.684590%
B8034120615.011202%
C8034530.659696%
D80341591.979089%

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 8900 8037 0 0 0.00% 0.00%
B 8900 8037 558 558 6.27% 6.94%
C 8900 8037 20 20 0.22% 0.25%
D 8900 8037 60 60 0.67% 0.75%

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 12 189 53149 253.22 1002 981 206.0
A 8 15 15252 69.27 1002 981 206.0
A 9 143 11423 50.69 1002 981 206.0
B 0 85 2998714 16538.86 957 935 181.3
B 0 189 92687 506.2 957 935 181.3
B 4 142 49293 266.79 957 935 181.3
C 3 233 262709 1155.28 966 969 226.6
C 0 207 105785 462.64 966 969 226.6
C 14 234 15174 62.7 966 969 226.6
D 1 52 1627919 6864.04 953 929 237.0
D 8 195 725889 3058.5 953 929 237.0
D 2 152 150056 629.15 953 929 237.0

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