ASTROSAT CZTI

Data Quality Report

Orbit 30432

Creation date: 2024-06-27T20:15:11.536942
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/AS1A10_121T02_9000004378_30432cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30432cztM0_level2_quad_clean.evt
Size (bytes)570,896,64094,924,800
Size544.4 MB 90.5 MB
Events in quadrant A3,229,098610,847
Events in quadrant B5,337,042611,382
Events in quadrant C3,361,841600,646
Events in quadrant D4,888,985565,711

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143521
B0211281
C0144902
D0196071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6980560.802292%
B69811251.790574%
C69801071.532951%
D69804866.962751%

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 7310 6980 0 0 0.00% 0.00%
B 7311 6981 1 1 0.01% 0.01%
C 7310 6980 0 0 0.00% 0.00%
D 7310 6980 361 361 4.94% 5.17%

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 13 254 12710 71.04 830 813 167.5
A 8 192 11269 62.44 830 813 167.5
A 14 239 9973 54.7 830 813 167.5
B 6 159 2021232 12665.39 824 802 159.5
B 0 229 49582 305.79 824 802 159.5
B 12 111 19866 119.51 824 802 159.5
C 14 238 134453 708.36 799 805 188.7
C 3 233 83885 440.34 799 805 188.7
C 2 114 16509 83.23 799 805 188.7
D 13 104 1530447 7496.73 773 758 204.0
D 13 249 199801 975.47 773 758 204.0
D 8 195 120690 587.77 773 758 204.0

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