ASTROSAT CZTI

Data Quality Report

Orbit 05311

Creation date: 2024-06-27T14:53:46.660266
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_240T01_9000000674_05311cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05311cztM0_level2_quad_clean.evt
Size (bytes)493,223,04092,191,680
Size470.4 MB 87.9 MB
Events in quadrant A3,466,988577,052
Events in quadrant B3,755,197600,909
Events in quadrant C3,518,410577,881
Events in quadrant D3,715,333542,278

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148983
B0156932
C0150252
D0157162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7089450.634786%
B7089871.227253%
C7089150.211595%
D7089390.550148%

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 9664 7091 7 7 0.07% 0.10%
B 9664 7091 22 22 0.23% 0.31%
C 9664 7091 1 1 0.01% 0.01%
D 9664 7091 15 15 0.16% 0.21%

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 78438 437.96 871 853 177.2
A 0 50 24332 132.54 871 853 177.2
A 0 247 13257 70.02 871 853 177.2
B 10 16 120974 717.67 888 866 167.4
B 4 48 75808 447.79 888 866 167.4
B 15 204 74433 439.58 888 866 167.4
C 1 16 168289 848.65 856 862 197.3
C 1 3 10075 46.7 856 862 197.3
C 13 61 6846 30.33 856 862 197.3
D 8 195 135887 653.77 844 820 206.6
D 2 234 106820 513.08 844 820 206.6
D 12 233 72741 348.12 844 820 206.6

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