ASTROSAT CZTI

Data Quality Report

Orbit 24648

Creation date: 2024-06-27T19:08:19.034529
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/AS1C05_012T06_9000003616_24648cztM0_level2.evt modeM0/AS1C05_012T06_9000003616_24648cztM0_level2_quad_clean.evt
Size (bytes)339,264,00092,496,960
Size323.5 MB 88.2 MB
Events in quadrant A2,192,209640,003
Events in quadrant B2,325,820642,121
Events in quadrant C3,223,280593,736
Events in quadrant D2,221,265603,658

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093601
B097541
C0127351
D095661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A457790.196635%
B4578150.327654%
C45781162.533858%
D457890.196592%

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 4577 4577 0 0 0.00% 0.00%
B 4578 4578 4 4 0.09% 0.09%
C 4578 4578 47 47 1.03% 1.03%
D 4578 4578 6 6 0.13% 0.13%

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 13 254 7499 61.53 567 557 112.8
A 0 226 4898 38.48 567 557 112.8
A 3 137 4856 38.1 567 557 112.8
B 5 172 63371 596.54 556 542 105.3
B 0 189 25849 240.28 556 542 105.3
B 0 245 18930 174.59 556 542 105.3
C 7 247 1024240 8282.02 530 533 123.6
C 14 238 85424 686.79 530 533 123.6
C 2 16 28238 224.14 530 533 123.6
D 8 195 83809 621.46 547 529 134.0
D 12 235 36977 271.98 547 529 134.0
D 2 120 17496 126.61 547 529 134.0

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