ASTROSAT CZTI

Data Quality Report

Orbit 32299

Creation date: 2024-06-27T20:38:36.494798
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_005T01_9000004700_32299cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32299cztM0_level2_quad_clean.evt
Size (bytes)643,999,68086,679,360
Size614.2 MB 82.7 MB
Events in quadrant A3,505,914546,714
Events in quadrant B5,815,334533,868
Events in quadrant C3,955,591519,528
Events in quadrant D5,723,883507,577

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152103
B0228202
C0162652
D0222082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74261471.979531%
B74262973.999461%
C74263044.093725%
D74261542.073795%

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 7596 7428 1 1 0.01% 0.01%
B 7596 7428 45 45 0.59% 0.61%
C 7596 7428 38 38 0.50% 0.51%
D 7596 7428 38 38 0.50% 0.51%

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 13 6 16294 84.63 900 880 182.1
A 13 254 14504 74.8 900 880 182.1
A 12 96 13637 70.04 900 880 182.1
B 6 159 2009148 11671.24 887 862 172.1
B 12 18 93772 539.95 887 862 172.1
B 5 172 67896 389.57 887 862 172.1
C 3 233 194718 960.64 861 865 201.8
C 14 238 157942 778.4 861 865 201.8
C 2 16 145575 717.11 861 865 201.8
D 8 195 2023693 9587.3 871 847 211.0
D 12 233 143418 675.72 871 847 211.0
D 12 218 80381 376.95 871 847 211.0

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