ASTROSAT CZTI

Data Quality Report

Orbit 08414

Creation date: 2024-06-27T15:32:26.223980
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/AS1A02_158T01_9000001184_08414cztM0_level2.evt modeM0/AS1A02_158T01_9000001184_08414cztM0_level2_quad_clean.evt
Size (bytes)592,522,56084,280,320
Size565.1 MB 80.4 MB
Events in quadrant A3,985,133500,344
Events in quadrant B4,265,257506,083
Events in quadrant C3,970,110499,620
Events in quadrant D5,166,436474,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01702
C01700
D01700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01745271
B018159105
C01750381
D02083587

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82113083.751066%
B82083394.130117%
C82071611.961740%
D82073043.704155%

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 8594 8243 0 0 0.00% 0.00%
B 8594 8244 8 8 0.09% 0.10%
C 8594 8246 2 2 0.02% 0.02%
D 8594 8245 83 83 0.97% 1.01%

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 0 226 9666 40.59 1034 1007 213.3
A 12 194 9224 38.52 1034 1007 213.3
A 5 16 7815 31.91 1034 1007 213.3
B 0 214 101858 497.14 1032 1005 202.9
B 5 255 49463 238.87 1032 1005 202.9
B 4 81 25911 122.77 1032 1005 202.9
C 1 16 26846 109.34 1004 1007 236.3
C 8 128 13673 53.6 1004 1007 236.3
C 13 61 7805 28.77 1004 1007 236.3
D 12 221 742858 3010.77 1000 970 246.4
D 4 95 268057 1083.91 1000 970 246.4
D 1 52 182290 735.84 1000 970 246.4

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