ASTROSAT CZTI

Data Quality Report

Orbit 30411

Creation date: 2024-06-27T20:14:53.793135
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/AS1C05_019T04_9000004376_30411cztM0_level2.evt modeM0/AS1C05_019T04_9000004376_30411cztM0_level2_quad_clean.evt
Size (bytes)542,332,800126,192,960
Size517.2 MB 120.3 MB
Events in quadrant A3,432,632865,710
Events in quadrant B4,888,976875,302
Events in quadrant C3,223,541860,875
Events in quadrant D4,482,274810,462

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140321
B0184391
C0134731
D0173711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58611422.422795%
B58611141.945061%
C58611232.098618%
D58624878.307745%

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 7151 5861 47 47 0.66% 0.80%
B 7151 5861 0 0 0.00% 0.00%
C 7151 5861 7 7 0.10% 0.12%
D 7151 5861 357 357 4.99% 6.09%

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 13 437580 2878.05 770 756 151.8
A 8 192 13954 86.96 770 756 151.8
A 13 254 11550 71.12 770 756 151.8
B 6 159 1724925 12209.5 766 748 141.2
B 0 229 139047 979.34 766 748 141.2
B 12 111 16376 110.66 766 748 141.2
C 14 238 124712 708.94 761 767 174.8
C 15 208 52530 296.07 761 767 174.8
C 3 233 35181 196.84 761 767 174.8
D 13 249 1119867 6388.18 740 720 175.2
D 8 195 212961 1211.49 740 720 175.2
D 2 250 127351 722.82 740 720 175.2

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