ASTROSAT CZTI

Data Quality Report

Orbit 06247

Creation date: 2024-06-27T15:04:41.461361
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_151T01_9000000818_06247cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06247cztM0_level2_quad_clean.evt
Size (bytes)495,478,08089,256,960
Size472.5 MB 85.1 MB
Events in quadrant A3,718,789549,541
Events in quadrant B3,682,243549,890
Events in quadrant C3,314,581549,768
Events in quadrant D3,780,099531,721

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161973
B0161242
C0153002
D0163672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75011181.573124%
B75012232.972937%
C7501991.319824%
D75011141.519797%

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 9021 7501 1 1 0.01% 0.01%
B 9021 7501 74 74 0.82% 0.99%
C 9021 7501 0 0 0.00% 0.00%
D 9021 7501 12 12 0.13% 0.16%

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 15 236 384322 2181.05 861 840 175.8
A 12 194 8153 41.59 861 840 175.8
A 0 226 8112 41.36 861 840 175.8
B 0 219 271178 1631.64 866 846 165.7
B 12 111 17528 100.69 866 846 165.7
B 4 81 16985 97.41 866 846 165.7
C 13 61 6633 29.52 848 850 195.9
C 8 222 4090 16.54 848 850 195.9
C 3 202 2096 6.36 848 850 195.9
D 2 63 205729 991.24 843 814 206.7
D 2 136 172162 828.87 843 814 206.7
D 2 152 113438 544.8 843 814 206.7

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