ASTROSAT CZTI

Data Quality Report

Orbit 20543

Creation date: 2024-06-27T18:16:37.356663
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/AS1A05_022T08_9000003036_20543cztM0_level2.evt modeM0/AS1A05_022T08_9000003036_20543cztM0_level2_quad_clean.evt
Size (bytes)503,945,28080,694,720
Size480.6 MB 77.0 MB
Events in quadrant A3,481,385499,534
Events in quadrant B3,641,501500,691
Events in quadrant C3,641,513474,543
Events in quadrant D4,005,502464,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150212
B0153142
C0154822
D0169402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7241981.353404%
B72401251.726519%
C72401381.906077%
D72401722.375691%

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 7686 7242 0 0 0.00% 0.00%
B 7685 7241 1 1 0.01% 0.01%
C 7685 7241 0 0 0.00% 0.00%
D 7685 7241 116 116 1.51% 1.60%

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 15 222 13363 67.57 897 877 184.8
A 15 174 12159 61.05 897 877 184.8
A 0 226 7803 37.48 897 877 184.8
B 0 197 44385 250.37 891 869 173.8
B 0 219 38155 214.53 891 869 173.8
B 12 111 20991 115.77 891 869 173.8
C 8 208 176165 866.06 850 856 202.4
C 14 238 131019 643.03 850 856 202.4
C 9 221 21889 103.91 850 856 202.4
D 13 153 601972 2830.7 858 832 212.4
D 1 52 94893 442.92 858 832 212.4
D 2 234 28203 128.89 858 832 212.4

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