ASTROSAT CZTI

Data Quality Report

Orbit 05711

Creation date: 2024-06-27T14:58:15.012739
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/AS1A02_098T01_9000000736_05711cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05711cztM0_level2_quad_clean.evt
Size (bytes)1,273,544,640190,992,960
Size1.2 GB 182.1 MB
Events in quadrant A8,413,3011,136,319
Events in quadrant B11,212,0661,118,532
Events in quadrant C8,282,4661,152,826
Events in quadrant D9,410,3241,100,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0382045
B0456424
C0380444
D0410674

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A184991420.767609%
B184995553.000162%
C184991040.562193%
D184991600.864912%

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 20409 18502 31 31 0.15% 0.17%
B 20409 18502 252 252 1.23% 1.36%
C 20409 18502 9 9 0.04% 0.05%
D 20409 18502 69 69 0.34% 0.37%

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 0 50 209197 477.15 2117 2073 434.1
A 15 174 31800 68.48 2117 2073 434.1
A 12 194 20390 42.2 2117 2073 434.1
B 15 204 1149850 2849.36 2124 2075 402.8
B 5 172 993950 2462.34 2124 2075 402.8
B 11 51 208518 512.5 2124 2075 402.8
C 9 16 207356 432.22 2051 2055 475.0
C 3 9 28002 54.63 2051 2055 475.0
C 14 67 20054 37.89 2051 2055 475.0
D 2 152 1004059 1997.1 2048 1985 501.8
D 8 195 141709 278.47 2048 1985 501.8
D 12 110 137215 269.51 2048 1985 501.8

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