ASTROSAT CZTI

Data Quality Report

Orbit 32704

Creation date: 2024-06-27T20:41:02.303182
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/AS1T04_063T01_9000004724_32704cztM0_level2.evt modeM0/AS1T04_063T01_9000004724_32704cztM0_level2_quad_clean.evt
Size (bytes)607,530,24076,579,200
Size579.4 MB 73.0 MB
Events in quadrant A3,533,307496,982
Events in quadrant B4,065,783496,900
Events in quadrant C3,366,663493,412
Events in quadrant D7,034,088418,530

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141083
B0157962
C0136782
D0250852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59061111.879445%
B59061843.115476%
C59061051.777853%
D5906109118.472740%

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 7250 5907 65 65 0.90% 1.10%
B 7250 5907 101 101 1.39% 1.71%
C 7250 5907 80 80 1.10% 1.35%
D 7250 5907 913 913 12.59% 15.46%

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 15 249 759070 5422.01 692 678 139.9
A 0 159 29545 206.38 692 678 139.9
A 7 16 18925 130.45 692 678 139.9
B 4 251 644094 4899.0 693 679 131.3
B 4 206 190706 1446.88 693 679 131.3
B 5 172 189405 1436.97 693 679 131.3
C 0 10 309533 1969.15 671 678 156.8
C 9 236 240886 1531.48 671 678 156.8
C 3 233 137980 875.39 671 678 156.8
D 2 250 1059901 7280.14 619 608 145.5
D 2 249 837522 5751.81 619 608 145.5
D 8 195 749656 5147.94 619 608 145.5

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