ASTROSAT CZTI

Data Quality Report

Orbit 13814

Creation date: 2024-06-27T16:46:26.827835
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/AS1A04_199T01_9000002040_13814cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13814cztM0_level2_quad_clean.evt
Size (bytes)578,646,72094,521,600
Size551.8 MB 90.1 MB
Events in quadrant A3,894,938580,853
Events in quadrant B4,028,764590,322
Events in quadrant C3,994,301577,215
Events in quadrant D5,054,858549,539

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169715
B0172094
C0170444
D0202584

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81163524.337112%
B81163654.497289%
C81162473.043371%
D81163173.905865%

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 8527 8119 0 0 0.00% 0.00%
B 8527 8119 6 6 0.07% 0.07%
C 8527 8121 0 0 0.00% 0.00%
D 8527 8119 32 32 0.38% 0.39%

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 1 162 16456 74.49 1003 974 207.8
A 8 15 12717 56.5 1003 974 207.8
A 0 226 9142 39.3 1003 974 207.8
B 4 80 51355 261.86 997 967 192.4
B 0 214 30389 152.9 997 967 192.4
B 4 173 28919 145.26 997 967 192.4
C 3 233 154611 670.13 979 981 229.3
C 8 128 13553 54.84 979 981 229.3
C 13 61 6849 25.6 979 981 229.3
D 1 52 443095 1859.82 973 942 237.7
D 10 157 384041 1611.42 973 942 237.7
D 8 195 188403 788.51 973 942 237.7

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