ASTROSAT CZTI

Data Quality Report

Orbit 47159

Creation date: 2024-06-27T23:32:22.469766
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/AS1C09_003T01_9000006298_47159cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47159cztM0_level2_quad_clean.evt
Size (bytes)470,416,320108,478,080
Size448.6 MB 103.5 MB
Events in quadrant A6,661,103714,767
Events in quadrant B3,323,133739,175
Events in quadrant C3,052,317705,197
Events in quadrant D3,834,849639,819

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246701
B0148251
C0144801
D0165981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69733505.019360%
B69742513.599082%
C69741402.007456%
D69743044.359048%

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 7373 6973 1 1 0.01% 0.01%
B 7374 6974 28 28 0.38% 0.40%
C 7374 6974 2 2 0.03% 0.03%
D 7374 6974 138 138 1.87% 1.98%

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 10 83 3628641 22852.09 765 748 158.8
A 14 235 41099 254.17 765 748 158.8
A 13 254 13506 80.36 765 748 158.8
B 5 32 99939 658.92 763 740 150.5
B 0 183 40913 266.85 763 740 150.5
B 0 200 39821 259.59 763 740 150.5
C 14 254 122948 697.59 747 746 175.2
C 3 233 16119 87.76 747 746 175.2
C 13 61 5047 24.55 747 746 175.2
D 7 96 276049 1471.1 747 723 187.2
D 1 47 217828 1160.02 747 723 187.2
D 12 233 118501 629.3 747 723 187.2

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