ASTROSAT CZTI

Data Quality Report

Orbit 47723

Creation date: 2024-07-25T18:05:03.985632
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/AS1T05_213T01_9000006344_47723cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47723cztM0_level2_quad_clean.evt
Size (bytes)512,674,560109,774,080
Size488.9 MB 104.7 MB
Events in quadrant A6,957,714723,190
Events in quadrant B4,702,229728,472
Events in quadrant C2,938,961741,580
Events in quadrant D3,863,083666,685

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260041
B0184371
C0137251
D0160531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66502694.045113%
B66514096.149451%
C6651450.676590%
D66511722.586077%

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 7665 6651 10 10 0.13% 0.15%
B 7665 6651 176 176 2.30% 2.65%
C 7665 6651 3 3 0.04% 0.05%
D 7665 6651 79 79 1.03% 1.19%

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 3829628 24901.24 743 728 153.8
A 9 191 125611 812.18 743 728 153.8
A 13 248 117858 761.75 743 728 153.8
B 5 255 1493871 10429.32 726 701 143.2
B 0 200 162745 1131.83 726 701 143.2
B 5 32 47647 327.9 726 701 143.2
C 14 254 59408 340.47 734 738 172.3
C 12 249 9573 51.27 734 738 172.3
C 12 2 6360 32.62 734 738 172.3
D 2 249 216951 1172.46 738 714 184.4
D 12 218 191150 1032.56 738 714 184.4
D 12 33 148901 803.48 738 714 184.4

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