ASTROSAT CZTI

Data Quality Report

Orbit 30053

Creation date: 2024-06-27T20:10:18.281665
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/AS1A10_071T09_9000004320_30053cztM0_level2.evt modeM0/AS1A10_071T09_9000004320_30053cztM0_level2_quad_clean.evt
Size (bytes)585,901,44096,528,960
Size558.8 MB 92.1 MB
Events in quadrant A3,733,903621,054
Events in quadrant B5,741,916613,119
Events in quadrant C3,862,902588,044
Events in quadrant D3,907,823589,885

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155002
B0224372
C0158022
D0160122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73362092.848964%
B73373314.511381%
C73372463.352869%
D73371281.744582%

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 9106 7338 1 1 0.01% 0.01%
B 9107 7339 17 17 0.19% 0.23%
C 9107 7339 0 0 0.00% 0.00%
D 9107 7339 0 0 0.00% 0.00%

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 8 192 25136 124.97 961 943 193.6
A 13 254 13177 63.2 961 943 193.6
A 3 137 9918 46.36 961 943 193.6
B 6 159 1999117 10880.44 935 911 183.7
B 0 229 39141 208.17 935 911 183.7
B 12 111 22957 120.04 935 911 183.7
C 14 238 151473 707.76 910 917 212.7
C 3 233 120499 562.15 910 917 212.7
C 15 208 19430 87.03 910 917 212.7
D 8 195 352853 1617.87 923 904 217.5
D 2 250 30123 134.32 923 904 217.5
D 2 234 26733 118.73 923 904 217.5

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