ASTROSAT CZTI

Data Quality Report

Orbit 08700

Creation date: 2024-06-27T15:36:08.057931
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/AS1A03_052T01_9000001208_08700cztM0_level2.evt modeM0/AS1A03_052T01_9000001208_08700cztM0_level2_quad_clean.evt
Size (bytes)464,947,20098,763,840
Size443.4 MB 94.2 MB
Events in quadrant A3,352,747619,089
Events in quadrant B3,534,993644,265
Events in quadrant C3,302,663643,824
Events in quadrant D3,424,889606,308

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145043
B0150142
C0143162
D0149092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6856450.656359%
B68561101.604434%
C6856290.422987%
D6856420.612602%

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 9356 6858 4 4 0.04% 0.06%
B 9356 6857 14 14 0.15% 0.20%
C 9356 6857 0 0 0.00% 0.00%
D 9356 6858 13 13 0.14% 0.19%

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 13 251 61388 351.01 848 828 172.5
A 5 16 21118 117.6 848 828 172.5
A 0 226 7857 40.74 848 828 172.5
B 4 173 63786 380.05 865 843 165.6
B 5 255 59189 352.29 865 843 165.6
B 10 16 28499 166.99 865 843 165.6
C 13 61 6497 28.68 845 850 196.9
C 8 222 3157 11.72 845 850 196.9
C 12 4 2446 8.11 845 850 196.9
D 2 152 76183 341.72 829 809 220.6
D 1 52 69613 311.93 829 809 220.6
D 2 136 45728 203.65 829 809 220.6

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