ASTROSAT CZTI

Data Quality Report

Orbit 32921

Creation date: 2024-06-27T20:43:29.952009
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/AS1C07_005T01_9000004748_32921cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32921cztM0_level2_quad_clean.evt
Size (bytes)547,813,440107,377,920
Size522.4 MB 102.4 MB
Events in quadrant A2,891,963721,413
Events in quadrant B3,386,362728,969
Events in quadrant C2,922,932735,582
Events in quadrant D6,996,156659,913

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124603
B0137792
C0123882
D0250382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5808490.843664%
B58082023.477961%
C5808580.998623%
D58085699.796832%

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 7182 5809 40 40 0.56% 0.69%
B 7182 5809 134 134 1.87% 2.31%
C 7182 5809 39 39 0.54% 0.67%
D 7182 5809 660 660 9.19% 11.36%

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 11 29 161699 1205.77 665 650 133.6
A 0 143 135615 1010.48 665 650 133.6
A 13 254 11101 78.25 665 650 133.6
B 5 172 582275 4621.64 660 643 125.8
B 0 199 64762 509.49 660 643 125.8
B 4 81 29160 226.6 660 643 125.8
C 0 10 149616 994.15 651 655 149.8
C 14 67 113839 755.38 651 655 149.8
C 4 254 46411 305.37 651 655 149.8
D 8 195 3205017 19504.05 630 615 164.3
D 7 80 282120 1713.42 630 615 164.3
D 12 227 270361 1641.85 630 615 164.3

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