ASTROSAT CZTI

Data Quality Report

Orbit 10364

Creation date: 2024-06-27T15:58:24.854903
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/AS1G07_048T01_9000001494_10364cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10364cztM0_level2_quad_clean.evt
Size (bytes)540,221,76066,631,680
Size515.2 MB 63.5 MB
Events in quadrant A3,096,777411,523
Events in quadrant B3,467,606412,709
Events in quadrant C3,016,618400,907
Events in quadrant D6,363,256362,852

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128993
B01402713
C0128558
D02318611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61551131.835906%
B61522163.511053%
C6152681.105332%
D61534196.809686%

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 7455 6155 0 0 0.00% 0.00%
B 7455 6155 55 55 0.74% 0.89%
C 7455 6155 1 1 0.01% 0.02%
D 7455 6155 301 301 4.04% 4.89%

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 0 226 7486 41.62 801 784 161.0
A 12 194 6323 34.4 801 784 161.0
A 8 5 6036 32.62 801 784 161.0
B 4 239 245389 1641.99 794 777 149.0
B 0 214 59164 391.93 794 777 149.0
B 0 219 48405 319.71 794 777 149.0
C 14 234 28620 158.69 765 770 175.5
C 13 61 5870 29.06 765 770 175.5
C 12 4 1910 6.5 765 770 175.5
D 1 20 2895043 16298.4 749 729 177.6
D 1 52 276520 1553.03 749 729 177.6
D 8 195 171290 960.46 749 729 177.6

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