ASTROSAT CZTI

Data Quality Report

Orbit 29200

Creation date: 2024-06-27T20:01:25.401849
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_053T34_9000004192_29200cztM0_level2.evt modeM0/AS1A10_053T34_9000004192_29200cztM0_level2_quad_clean.evt
Size (bytes)866,151,36091,984,320
Size826.0 MB 87.7 MB
Events in quadrant A3,464,877610,523
Events in quadrant B4,071,891608,622
Events in quadrant C10,633,154529,243
Events in quadrant D7,575,723534,132

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149071
B0167221
C0366891
D0274431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7211380.526973%
B72121131.566833%
C7212201427.925679%
D721296513.380477%

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 7516 7212 0 0 0.00% 0.00%
B 7517 7213 30 30 0.40% 0.42%
C 7517 7213 1319 1319 17.55% 18.29%
D 7517 7213 832 832 11.07% 11.53%

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 15 169 33914 185.08 887 867 178.6
A 13 254 15116 79.8 887 867 178.6
A 3 137 8572 43.15 887 867 178.6
B 0 183 327615 1924.09 882 863 169.8
B 5 255 96013 560.29 882 863 169.8
B 0 229 81137 472.7 882 863 169.8
C 3 233 7384180 39403.34 794 801 187.4
C 14 238 126983 673.4 794 801 187.4
C 2 114 16456 83.55 794 801 187.4
D 1 52 3168218 15836.78 820 795 200.0
D 8 195 607195 3031.94 820 795 200.0
D 2 250 396825 1980.11 820 795 200.0

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