ASTROSAT CZTI

Data Quality Report

Orbit 30436

Creation date: 2024-06-27T20:15:13.455917
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_30436cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30436cztM0_level2_quad_clean.evt
Size (bytes)595,791,36075,686,400
Size568.2 MB 72.2 MB
Events in quadrant A3,113,767475,767
Events in quadrant B4,908,887474,812
Events in quadrant C3,554,359459,848
Events in quadrant D6,033,918435,121

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131701
B0192671
C0143152
D0220861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6399560.875137%
B6400881.375000%
C63991382.156587%
D639989113.924051%

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 7359 6399 0 0 0.00% 0.00%
B 7360 6400 0 0 0.00% 0.00%
C 7359 6399 6 6 0.08% 0.09%
D 7359 6399 856 856 11.63% 13.38%

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 10791 62.48 800 785 160.1
A 8 192 10434 60.25 800 785 160.1
A 4 2 9493 54.38 800 785 160.1
B 6 159 1748344 11561.92 787 767 151.1
B 0 229 60054 392.24 787 767 151.1
B 12 111 18715 118.74 787 767 151.1
C 3 233 321133 1809.25 756 762 177.1
C 14 238 139665 784.44 756 762 177.1
C 10 22 91273 511.15 756 762 177.1
D 13 104 1827925 9701.34 736 719 188.3
D 2 250 1159109 6150.34 736 719 188.3
D 8 195 101261 533.82 736 719 188.3

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