ASTROSAT CZTI

Data Quality Report

Orbit 30084

Creation date: 2024-06-27T20:10:51.036179
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_071T10_9000004328_30084cztM0_level2.evt modeM0/AS1A10_071T10_9000004328_30084cztM0_level2_quad_clean.evt
Size (bytes)613,356,48099,336,960
Size584.9 MB 94.7 MB
Events in quadrant A3,889,200632,372
Events in quadrant B5,983,545630,214
Events in quadrant C3,909,998601,360
Events in quadrant D4,259,728597,579

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164902
B0239324
C0164892
D0173462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78632523.204884%
B78624095.202239%
C78633164.018822%
D78632332.963246%

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 8293 7866 0 0 0.00% 0.00%
B 8292 7865 5 5 0.06% 0.06%
C 8293 7866 0 0 0.00% 0.00%
D 8293 7866 28 28 0.34% 0.36%

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 8 192 22694 106.83 1002 978 203.3
A 13 254 13136 59.81 1002 978 203.3
A 3 137 10335 46.03 1002 978 203.3
B 6 159 2101547 10993.13 978 952 191.1
B 12 111 24428 122.86 978 952 191.1
B 11 111 22725 113.95 978 952 191.1
C 14 238 156532 692.85 953 957 224.5
C 2 114 18861 79.74 953 957 224.5
C 3 233 9137 36.43 953 957 224.5
D 13 104 173035 746.79 968 946 230.4
D 8 195 159692 688.89 968 946 230.4
D 7 223 146135 630.06 968 946 230.4

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