ASTROSAT CZTI

Data Quality Report

Orbit 08009

Creation date: 2024-06-27T15:26:46.562344
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/AS1G06_154T01_9000001100_08009cztM0_level2.evt modeM0/AS1G06_154T01_9000001100_08009cztM0_level2_quad_clean.evt
Size (bytes)556,801,92088,937,280
Size531.0 MB 84.8 MB
Events in quadrant A3,355,659546,732
Events in quadrant B3,447,565561,978
Events in quadrant C3,325,839562,561
Events in quadrant D6,233,475508,891

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01521128
B01527353
C01518043
D023619128

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73792022.737498%
B73661962.660874%
C73711091.478768%
D736183611.357153%

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 7452 7392 1 1 0.01% 0.01%
B 7452 7392 1 1 0.01% 0.01%
C 7452 7392 0 0 0.00% 0.00%
D 7452 7388 609 609 8.17% 8.24%

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 0 103 13291 69.7 865 843 178.6
A 13 14 10951 56.6 865 843 178.6
A 0 226 8754 44.3 865 843 178.6
B 11 51 33670 190.54 870 846 172.3
B 5 250 23105 129.21 870 846 172.3
B 12 111 19614 108.95 870 846 172.3
C 13 61 6404 28.24 847 850 196.7
C 8 128 5256 22.4 847 850 196.7
C 8 222 4747 19.81 847 850 196.7
D 11 144 1880336 9847.7 786 764 190.9
D 1 52 1167998 6115.53 786 764 190.9
D 2 14 91900 477.49 786 764 190.9

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