ASTROSAT CZTI

Data Quality Report

Orbit 30473

Creation date: 2024-06-27T20:15:42.469153
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/AS1A10_058T03_9000004380_30473cztM0_level2.evt modeM0/AS1A10_058T03_9000004380_30473cztM0_level2_quad_clean.evt
Size (bytes)594,887,04099,760,320
Size567.3 MB 95.1 MB
Events in quadrant A3,358,289661,531
Events in quadrant B5,423,222655,678
Events in quadrant C4,470,171610,750
Events in quadrant D4,296,427611,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144662
B0211252
C0177272
D0173252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6923540.780009%
B69231321.906688%
C69234015.792287%
D69231402.022245%

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 7583 6924 2 2 0.03% 0.03%
B 7583 6924 9 9 0.12% 0.13%
C 7583 6924 172 172 2.27% 2.48%
D 7583 6924 118 118 1.56% 1.70%

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 8 192 24026 134.15 859 842 172.8
A 12 96 18884 104.39 859 842 172.8
A 13 254 12829 69.36 859 842 172.8
B 6 159 1977714 12024.72 846 828 164.4
B 0 229 39118 232.91 846 828 164.4
B 4 171 32472 192.48 846 828 164.4
C 15 208 854419 4586.09 795 799 186.1
C 3 233 140350 749.74 795 799 186.1
C 14 238 134910 720.51 795 799 186.1
D 8 195 538139 2783.84 816 796 193.0
D 13 104 483450 2500.51 816 796 193.0
D 2 250 49784 253.79 816 796 193.0

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