ASTROSAT CZTI

Data Quality Report

Orbit 29286

Creation date: 2024-06-27T20:02:21.914678
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_021T10_9000004210_29286cztM0_level2.evt modeM0/AS1A10_021T10_9000004210_29286cztM0_level2_quad_clean.evt
Size (bytes)608,679,36087,880,320
Size580.5 MB 83.8 MB
Events in quadrant A3,277,976564,998
Events in quadrant B3,421,650569,820
Events in quadrant C4,356,210534,959
Events in quadrant D6,911,115510,513

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141111
B0144421
C0174801
D0253331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6900650.942029%
B6901861.246196%
C69011512.188089%
D69016259.056658%

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 7565 6901 0 0 0.00% 0.00%
B 7566 6902 10 10 0.13% 0.14%
C 7566 6902 0 0 0.00% 0.00%
D 7566 6902 498 498 6.58% 7.22%

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 13989 77.25 848 829 170.4
A 3 137 7957 41.84 848 829 170.4
A 0 226 7426 38.73 848 829 170.4
B 10 247 32613 203.59 837 817 156.2
B 0 229 26854 166.71 837 817 156.2
B 10 245 23800 147.16 837 817 156.2
C 3 233 1084969 5871.88 800 804 184.6
C 14 238 131535 708.04 800 804 184.6
C 2 114 16731 86.26 800 804 184.6
D 1 52 1600723 8462.22 798 776 189.1
D 8 195 1224358 6471.6 798 776 189.1
D 12 79 257417 1357.39 798 776 189.1

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