ASTROSAT CZTI

Data Quality Report

Orbit 13038

Creation date: 2024-06-27T16:35:20.376931
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/AS1A04_216T01_9000001916_13038cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13038cztM0_level2_quad_clean.evt
Size (bytes)592,657,92097,200,000
Size565.2 MB 92.7 MB
Events in quadrant A3,342,319655,123
Events in quadrant B7,177,369541,215
Events in quadrant C3,021,167660,578
Events in quadrant D3,952,510618,598

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142253
B0258272
C0135932
D0163912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6706340.507009%
B6706215832.180137%
C6706170.253504%
D6706781.163137%

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 8793 6709 7 7 0.08% 0.10%
B 8793 6708 1314 1314 14.94% 19.59%
C 8793 6709 0 0 0.00% 0.00%
D 8793 6709 59 59 0.67% 0.88%

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 12 189 92655 577.38 782 765 159.2
A 1 162 63982 397.22 782 765 159.2
A 15 223 49225 304.49 782 765 159.2
B 4 239 4514972 39558.69 605 589 114.1
B 0 85 194729 1701.21 605 589 114.1
B 0 214 33164 285.45 605 589 114.1
C 13 61 5561 26.91 773 777 177.8
C 12 4 2805 11.41 773 777 177.8
C 14 234 2654 10.56 773 777 177.8
D 1 52 917577 5057.29 756 734 181.3
D 8 195 92874 508.24 756 734 181.3
D 14 34 54503 296.59 756 734 181.3

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