ASTROSAT CZTI

Data Quality Report

Orbit 43576

Creation date: 2024-06-27T22:53:21.918398
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/AS1A05_174T01_9000005880_43576cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43576cztM0_level2_quad_clean.evt
Size (bytes)353,678,40029,367,360
Size337.3 MB 28.0 MB
Events in quadrant A1,486,182264,736
Events in quadrant B1,428,061272,593
Events in quadrant C5,666,152143,717
Events in quadrant D4,337,41046,383

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059460
B057050
C0182810
D0144070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A221650.225632%
B2216231.037906%
C2216196388.583032%
D22162216100.000000%

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 2216 2216 5 5 0.23% 0.23%
B 2216 2216 16 16 0.72% 0.72%
C 2215 2215 1965 1965 88.71% 88.71%
D 2215 2215 1024 1024 46.23% 46.23%

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 223691 4241.89 248 244 52.7
A 15 222 142043 2691.89 248 244 52.7
A 14 63 33466 630.68 248 244 52.7
B 4 206 389643 7886.33 247 242 49.4
B 0 200 21295 426.38 247 242 49.4
B 0 230 17546 350.45 247 242 49.4
C 15 174 2192114 66810.17 133 134 32.8
C 15 142 1813471 55269.37 133 134 32.8
C 15 126 882418 26891.46 133 134 32.8
D 4 212 2429522 149449.36 51 48 16.3
D 4 216 369830 22747.18 51 48 16.3
D 13 187 355120 21842.29 51 48 16.3

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