ASTROSAT CZTI

Data Quality Report

Orbit 00160

Creation date: 2024-06-27T13:57:12.403986
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/AS1P01_120T01_9000000006_00160cztM0_level2.evt modeM0/AS1P01_120T01_9000000006_00160cztM0_level2_quad_clean.evt
Size (bytes)511,790,40013,032,000
Size488.1 MB 12.4 MB
Events in quadrant A3,958,23339,759
Events in quadrant B3,819,28341,485
Events in quadrant C3,580,99139,867
Events in quadrant D3,919,79437,956

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0702
B0702
C0700
D0702

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015001876
B014583905
C013773804
D014943924

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A330130.090882%
B329500.000000%
C329800.000000%
D3288631.916058%

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 6272 3332 101 101 1.61% 3.03%
B 6270 3326 38 38 0.61% 1.14%
C 6265 3329 27 27 0.43% 0.81%
D 6265 3323 222 222 3.54% 6.68%

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 15 106 89065 401.68 983 977 219.3
A 14 201 20803 90.41 983 977 219.3
A 14 10 16929 72.74 983 977 219.3
B 10 199 11570 45.4 989 998 232.9
B 0 212 9339 35.82 989 998 232.9
B 14 50 7438 27.66 989 998 232.9
C 1 1 16202 60.63 897 927 251.9
C 7 255 15267 56.92 897 927 251.9
C 9 128 10056 36.24 897 927 251.9
D 10 202 308083 1160.96 879 908 264.6
D 14 53 187591 705.57 879 908 264.6
D 2 106 11627 40.51 879 908 264.6

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