ASTROSAT CZTI

Data Quality Report

Orbit 07662

Creation date: 2024-06-27T15:22:25.037680
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/AS1G06_114T01_9000001056_07662cztM0_level2.evt modeM0/AS1G06_114T01_9000001056_07662cztM0_level2_quad_clean.evt
Size (bytes)499,458,24077,915,520
Size476.3 MB 74.3 MB
Events in quadrant A3,344,306471,265
Events in quadrant B3,554,929471,217
Events in quadrant C3,353,468469,051
Events in quadrant D4,385,075447,104

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147832
B0151881
C0148791
D0178691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7196610.847693%
B7196881.222902%
C7196320.444691%
D71962403.335186%

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 7486 7197 0 0 0.00% 0.00%
B 7486 7197 5 5 0.07% 0.07%
C 7486 7197 1 1 0.01% 0.01%
D 7486 7197 135 135 1.80% 1.88%

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 13 251 19159 104.33 856 836 175.6
A 15 174 18230 99.04 856 836 175.6
A 0 226 8416 43.16 856 836 175.6
B 0 229 60591 363.4 859 840 164.4
B 10 245 36484 216.78 859 840 164.4
B 0 230 24032 141.05 859 840 164.4
C 8 208 88483 450.73 829 834 194.5
C 9 68 14907 72.37 829 834 194.5
C 12 4 6530 29.29 829 834 194.5
D 2 152 578067 2846.95 823 798 202.8
D 13 104 359906 1771.03 823 798 202.8
D 5 233 51049 247.83 823 798 202.8

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