ASTROSAT CZTI

Data Quality Report

Orbit 48110

Creation date: 2024-09-05T00:23:32.258761
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/AS1A13_071T03_9000006400_48110cztM0_level2.fits modeM0/AS1A13_071T03_9000006400_48110cztM0_level2_quad_clean.evt
Size (bytes)400,677,12082,238,400
Size382.1 MB 78.4 MB
Events in quadrant A6,821,656690,888
Events in quadrant B1,126,706140
Events in quadrant C2,884,006705,582
Events in quadrant D3,482,654636,991

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255741
B069541
C0133681
D0149631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65472333.558882%
B6547654699.984726%
C6546290.443019%
D65471051.603788%

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 7512 6547 8 8 0.11% 0.12%
B 7511 6546 0 0 0.00% 0.00%
C 7511 6546 2 2 0.03% 0.03%
D 7512 6547 74 74 0.99% 1.13%

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 10 83 3961190 25456.57 732 715 155.6
A 13 248 16594 102.06 732 715 155.6
A 13 254 13302 80.9 732 715 155.6
B 2 177 903427 77882.64 48 47 11.6
B 5 255 11593 995.41 48 47 11.6
B 4 21 10334 886.87 48 47 11.6
C 11 16 45837 262.34 723 726 172.0
C 14 67 5773 29.35 723 726 172.0
C 12 250 5706 28.96 723 726 172.0
D 7 67 322170 1760.16 724 701 182.6
D 2 165 72112 391.0 724 701 182.6
D 2 37 49416 266.73 724 701 182.6

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