ASTROSAT CZTI

Data Quality Report

Orbit 46315

Creation date: 2024-06-27T23:21:36.724144
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_46315cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46315cztM0_level2_quad_clean.evt
Size (bytes)474,552,000110,810,880
Size452.6 MB 105.7 MB
Events in quadrant A5,884,625742,321
Events in quadrant B3,655,606774,747
Events in quadrant C3,105,146732,591
Events in quadrant D4,427,038661,873

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211753
B0148941
C0135311
D0173701

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63662503.927113%
B63671782.795665%
C63681071.680276%
D63682714.255653%

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 7482 6368 3 3 0.04% 0.05%
B 7482 6368 33 33 0.44% 0.52%
C 7483 6369 7 7 0.09% 0.11%
D 7483 6369 121 121 1.62% 1.90%

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 2901503 18174.18 765 749 159.6
A 13 254 11728 68.78 765 749 159.6
A 2 79 9743 56.35 765 749 159.6
B 5 255 179963 1207.2 760 736 148.5
B 3 112 141121 945.58 760 736 148.5
B 8 234 82883 553.31 760 736 148.5
C 11 16 80561 456.89 746 751 174.7
C 1 3 49258 277.69 746 751 174.7
C 12 2 42865 241.09 746 751 174.7
D 1 52 946323 5153.06 742 719 183.5
D 2 249 342887 1864.64 742 719 183.5
D 13 249 145049 786.52 742 719 183.5

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