ASTROSAT CZTI

Data Quality Report

Orbit 30585

Creation date: 2024-06-27T20:17:19.081200
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/AS1A10_103T02_9000004406_30585cztM0_level2.evt modeM0/AS1A10_103T02_9000004406_30585cztM0_level2_quad_clean.evt
Size (bytes)629,501,76079,554,240
Size600.3 MB 75.9 MB
Events in quadrant A4,191,657504,882
Events in quadrant B5,753,722502,159
Events in quadrant C4,145,615466,534
Events in quadrant D4,529,372476,988

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167332
B0213722
C0167462
D0180722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65752363.589354%
B65752694.091255%
C65743765.719501%
D65742984.533009%

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 7905 6576 56 56 0.71% 0.85%
B 7905 6576 45 45 0.57% 0.68%
C 7904 6575 119 119 1.51% 1.81%
D 7904 6575 130 130 1.64% 1.98%

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 420765 2232.38 970 956 188.1
A 8 192 25857 132.41 970 956 188.1
A 13 254 11800 57.66 970 956 188.1
B 6 159 1747675 10054.84 950 931 173.7
B 0 229 192986 1105.53 950 931 173.7
B 5 255 44431 250.4 950 931 173.7
C 0 10 342633 1692.57 893 902 201.9
C 14 238 165931 817.37 893 902 201.9
C 3 233 107599 528.46 893 902 201.9
D 13 249 376024 1761.92 927 907 212.9
D 1 52 307669 1440.86 927 907 212.9
D 8 195 115559 538.52 927 907 212.9

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