ASTROSAT CZTI

Data Quality Report

Orbit 31962

Creation date: 2024-06-27T20:34:42.200416
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_094T33_9000004664_31962cztM0_level2.evt modeM0/AS1A10_094T33_9000004664_31962cztM0_level2_quad_clean.evt
Size (bytes)365,336,64069,344,640
Size348.4 MB 66.1 MB
Events in quadrant A2,058,217462,928
Events in quadrant B3,317,155457,231
Events in quadrant C2,323,235445,797
Events in quadrant D3,082,749440,638

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084920
B0127650
C093980
D0122440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A415930.072133%
B4159360.865593%
C4159551.322433%
D4159571.370522%

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 4159 4159 0 0 0.00% 0.00%
B 4159 4159 19 19 0.46% 0.46%
C 4159 4159 32 32 0.77% 0.77%
D 4159 4159 56 56 1.35% 1.35%

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 8271 72.88 530 521 106.3
A 14 238 8246 72.64 530 521 106.3
A 13 6 5819 49.82 530 521 106.3
B 6 159 1145635 11862.15 517 505 96.5
B 5 172 69975 719.62 517 505 96.5
B 0 190 19660 198.42 517 505 96.5
C 0 10 153344 1319.83 503 507 115.8
C 3 233 112820 969.88 503 507 115.8
C 14 238 83026 712.59 503 507 115.8
D 8 195 788902 6436.83 512 500 122.5
D 13 249 253923 2069.05 512 500 122.5
D 12 233 36134 290.93 512 500 122.5

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