ASTROSAT CZTI

Data Quality Report

Orbit 46274

Creation date: 2024-06-27T23:21:08.901220
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/AS1A13_072T01_9000006192_46274cztM0_level2.fits modeM0/AS1A13_072T01_9000006192_46274cztM0_level2_quad_clean.evt
Size (bytes)477,014,400110,180,160
Size454.9 MB 105.1 MB
Events in quadrant A5,814,112720,746
Events in quadrant B5,090,511738,254
Events in quadrant C2,998,794736,992
Events in quadrant D3,232,153671,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218621
B0197751
C0138911
D0145951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67272002.973094%
B67272804.162331%
C6728660.980975%
D6728821.218787%

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 7462 6728 6 6 0.08% 0.09%
B 7462 6728 49 49 0.66% 0.73%
C 7463 6729 8 8 0.11% 0.12%
D 7463 6729 36 36 0.48% 0.53%

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 2953996 19523.73 732 715 151.3
A 9 191 20057 127.86 732 715 151.3
A 13 254 11149 68.97 732 715 151.3
B 3 112 1839168 12826.95 733 710 143.3
B 5 172 116375 807.0 733 710 143.3
B 5 32 109969 762.3 733 710 143.3
C 12 2 77734 443.34 742 748 173.7
C 1 3 11763 63.43 742 748 173.7
C 12 250 10371 55.42 742 748 173.7
D 1 52 141956 779.2 737 716 181.3
D 13 249 113190 620.5 737 716 181.3
D 2 249 46718 253.79 737 716 181.3

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