ASTROSAT CZTI

Data Quality Report

Orbit 44754

Creation date: 2024-06-27T23:06:08.119523
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_004T12_9000006020_44754cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44754cztM0_level2_quad_clean.evt
Size (bytes)152,896,32034,142,400
Size145.8 MB 32.6 MB
Events in quadrant A1,858,598218,392
Events in quadrant B1,379,032228,305
Events in quadrant C1,031,067228,642
Events in quadrant D1,222,690204,330

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072600
B055320
C045960
D052070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21321778.302064%
B21321587.410882%
C2132110.515947%
D2132703.283302%

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 2132 2132 41 41 1.92% 1.92%
B 2132 2132 56 56 2.63% 2.63%
C 2132 2132 2 2 0.09% 0.09%
D 2132 2132 33 33 1.55% 1.55%

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 546820 10039.4 251 244 54.4
A 15 223 331470 6083.89 251 244 54.4
A 13 248 6681 118.23 251 244 54.4
B 0 189 287975 5488.14 253 244 52.4
B 5 255 65050 1236.1 253 244 52.4
B 0 190 13625 255.23 253 244 52.4
C 14 254 32419 525.61 254 254 61.2
C 3 233 3925 59.99 254 254 61.2
C 1 3 2113 30.38 254 254 61.2
D 5 235 161092 2534.49 246 237 63.5
D 13 249 40566 635.44 246 237 63.5
D 2 249 37976 594.63 246 237 63.5

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