ASTROSAT CZTI

Data Quality Report

Orbit 46376

Creation date: 2024-06-27T23:22:23.231810
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/AS1A13_068T02_9000006200_46376cztM0_level2.fits modeM0/AS1A13_068T02_9000006200_46376cztM0_level2_quad_clean.evt
Size (bytes)141,802,56035,354,880
Size135.2 MB 33.7 MB
Events in quadrant A1,893,249238,945
Events in quadrant B1,120,563239,224
Events in quadrant C905,509227,031
Events in quadrant D1,161,685211,069

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068110
B048290
C043470
D049280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2129170.798497%
B2130231.079812%
C213020.093897%
D2130190.892019%

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 2129 2129 11 11 0.52% 0.52%
B 2130 2130 15 15 0.70% 0.70%
C 2130 2130 2 2 0.09% 0.09%
D 2130 2130 16 16 0.75% 0.75%

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 949611 19325.82 228 224 49.1
A 13 248 54080 1096.3 228 224 49.1
A 0 243 6061 118.82 228 224 49.1
B 5 255 101721 2205.75 224 217 46.0
B 4 171 100642 2182.3 224 217 46.0
B 5 250 10101 214.79 224 217 46.0
C 1 3 18720 343.01 223 223 53.9
C 14 254 13792 251.62 223 223 53.9
C 4 254 1997 32.89 223 223 53.9
D 8 176 98221 1690.68 224 216 58.0
D 5 235 96734 1665.03 224 216 58.0
D 5 171 34400 589.71 224 216 58.0

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