ASTROSAT CZTI

Data Quality Report

Orbit 10673

Creation date: 2024-06-27T16:02:18.542914
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/AS1A03_097T01_9000001540_10673cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10673cztM0_level2_quad_clean.evt
Size (bytes)663,886,08086,391,360
Size633.1 MB 82.4 MB
Events in quadrant A4,046,467533,346
Events in quadrant B5,409,682524,250
Events in quadrant C3,721,879541,181
Events in quadrant D6,390,545465,175

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172932
B0212271
C0166281
D0239411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79223194.026761%
B79226788.558445%
C79221571.981823%
D792292811.714214%

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 8187 7923 37 37 0.45% 0.47%
B 8187 7923 199 199 2.43% 2.51%
C 8187 7923 3 3 0.04% 0.04%
D 8186 7922 690 690 8.43% 8.71%

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 15 239 292793 1475.98 956 933 197.7
A 1 162 32359 158.93 956 933 197.7
A 3 1 23884 116.07 956 933 197.7
B 4 239 847723 4604.36 943 917 183.9
B 0 85 471386 2558.09 943 917 183.9
B 4 81 257780 1396.65 943 917 183.9
C 14 234 18136 77.96 939 942 220.6
C 4 175 13426 56.6 939 942 220.6
C 8 128 10256 42.23 939 942 220.6
D 10 199 1485459 6859.86 889 861 216.4
D 8 195 580020 2676.11 889 861 216.4
D 12 233 364708 1681.22 889 861 216.4

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