ASTROSAT CZTI

Data Quality Report

Orbit 21432

Creation date: 2024-06-27T18:27:45.116718
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/AS1T03_140T01_9000003160_21432cztM0_level2.evt modeM0/AS1T03_140T01_9000003160_21432cztM0_level2_quad_clean.evt
Size (bytes)439,914,24061,076,160
Size419.5 MB 58.2 MB
Events in quadrant A3,020,350358,852
Events in quadrant B3,074,845363,361
Events in quadrant C3,015,807352,728
Events in quadrant D3,788,100338,983

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128131
B0129971
C0128071
D0153941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6229350.561888%
B6230420.674157%
C6229470.754535%
D6229841.348531%

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 7264 6229 0 0 0.00% 0.00%
B 7265 6230 1 1 0.01% 0.02%
C 7264 6229 0 0 0.00% 0.00%
D 7264 6229 73 73 1.00% 1.17%

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 47 43215 274.51 770 754 154.7
A 13 254 9182 54.48 770 754 154.7
A 3 1 9010 53.37 770 754 154.7
B 3 64 33774 224.28 769 750 147.2
B 0 230 18857 122.97 769 750 147.2
B 12 111 17550 114.1 769 750 147.2
C 14 238 117033 670.99 738 743 173.3
C 8 128 12099 65.52 738 743 173.3
C 8 112 5380 26.76 738 743 173.3
D 1 52 290502 1614.59 743 723 179.5
D 1 20 245348 1363.0 743 723 179.5
D 12 235 213582 1186.01 743 723 179.5

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