ASTROSAT CZTI

Data Quality Report

Orbit 29336

Creation date: 2024-06-27T20:02:57.766679
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/AS1T03_279T01_9000004218_29336cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29336cztM0_level2_quad_clean.evt
Size (bytes)821,868,48088,562,880
Size783.8 MB 84.5 MB
Events in quadrant A3,098,925629,135
Events in quadrant B3,260,488640,421
Events in quadrant C3,395,374609,627
Events in quadrant D14,702,629354,925

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131741
B0136121
C0140201
D0480001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6405170.265418%
B6405490.765027%
C64052704.215457%
D6405505578.922717%

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 7445 6407 0 0 0.00% 0.00%
B 7445 6407 7 7 0.09% 0.11%
C 7445 6407 2 2 0.03% 0.03%
D 7445 6407 4597 4597 61.75% 71.75%

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 1 113 20380 122.74 793 777 159.7
A 15 174 16677 99.55 793 777 159.7
A 13 254 13153 77.49 793 777 159.7
B 10 245 68380 449.73 795 776 150.3
B 5 172 30588 198.32 795 776 150.3
B 12 111 18025 114.75 795 776 150.3
C 14 238 177793 991.96 765 772 178.5
C 3 233 111214 618.87 765 772 178.5
C 14 254 79906 443.44 765 772 178.5
D 12 33 9888110 89536.97 460 448 110.4
D 1 52 1936412 17530.97 460 448 110.4
D 7 80 832069 7530.68 460 448 110.4

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