ASTROSAT CZTI

Data Quality Report

Orbit 43473

Creation date: 2024-06-27T22:52:22.334192
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/AS1A12_018T01_9000005874_43473cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43473cztM0_level2_quad_clean.evt
Size (bytes)438,986,88086,958,720
Size418.7 MB 82.9 MB
Events in quadrant A5,400,932574,016
Events in quadrant B2,639,123623,014
Events in quadrant C2,480,016598,637
Events in quadrant D5,335,324480,877

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196062
B0111802
C0105222
D0193542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A507369213.640844%
B5073310.611078%
C507390.177410%
D507288417.429022%

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 7076 5074 501 501 7.08% 9.87%
B 7076 5074 18 18 0.25% 0.35%
C 7076 5074 3 3 0.04% 0.06%
D 7074 5072 860 860 12.16% 16.96%

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 15 222 2410395 22118.41 533 523 109.0
A 10 83 573278 5256.89 533 523 109.0
A 15 237 235704 2158.55 533 523 109.0
B 0 245 163196 1538.07 563 547 105.7
B 0 199 77516 727.85 563 547 105.7
B 0 189 65702 616.13 563 547 105.7
C 15 214 222192 1714.69 560 564 129.3
C 3 233 45989 351.44 560 564 129.3
C 14 254 16327 121.96 560 564 129.3
D 1 52 2212983 18657.13 486 472 118.6
D 2 16 684178 5765.39 486 472 118.6
D 2 249 137866 1158.58 486 472 118.6

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