ASTROSAT CZTI

Data Quality Report

Orbit 03289

Creation date: 2024-06-27T14:27:11.894480
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/AS1G05_228T02_9000000446_03289cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03289cztM0_level2_quad_clean.evt
Size (bytes)556,522,56074,358,720
Size530.7 MB 70.9 MB
Events in quadrant A3,547,711434,405
Events in quadrant B4,834,377434,024
Events in quadrant C4,456,716439,577
Events in quadrant D3,509,948425,002

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158063
B0192762
C0185342
D0159642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74602793.739946%
B74603094.142091%
C74602563.431635%
D74602002.680965%

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 7775 7462 16 16 0.21% 0.21%
B 7775 7462 54 54 0.69% 0.72%
C 7775 7462 48 48 0.62% 0.64%
D 7775 7462 21 21 0.27% 0.28%

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 0 50 95152 516.2 879 857 182.7
A 0 118 55758 300.54 879 857 182.7
A 0 226 13946 71.65 879 857 182.7
B 15 204 944782 5349.83 890 866 176.4
B 2 249 210175 1186.3 890 866 176.4
B 3 0 161043 907.83 890 866 176.4
C 14 223 432089 2137.85 858 860 201.7
C 12 175 271402 1341.23 858 860 201.7
C 6 80 201713 995.74 858 860 201.7
D 13 223 96891 459.83 855 829 208.9
D 13 239 72799 344.5 855 829 208.9
D 5 233 59756 282.07 855 829 208.9

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