ASTROSAT CZTI

Data Quality Report

Orbit 47122

Creation date: 2024-06-27T23:31:58.670644
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/AS1C09_003T01_9000006298_47122cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47122cztM0_level2_quad_clean.evt
Size (bytes)499,576,320107,190,720
Size476.4 MB 102.2 MB
Events in quadrant A6,737,572704,724
Events in quadrant B3,924,538731,208
Events in quadrant C3,088,599699,419
Events in quadrant D4,216,541638,029

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244622
B0163712
C0143052
D0175002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67762944.338843%
B67761091.608619%
C6776640.944510%
D67762393.527155%

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 7696 6777 94 94 1.22% 1.39%
B 7696 6777 44 44 0.57% 0.65%
C 7696 6777 27 27 0.35% 0.40%
D 7696 6777 194 194 2.52% 2.86%

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 3826315 25034.16 734 719 152.8
A 14 248 24656 156.64 734 719 152.8
A 0 243 19133 120.5 734 719 152.8
B 4 21 256019 1754.17 739 716 145.5
B 0 190 248765 1704.33 739 716 145.5
B 5 32 105866 722.48 739 716 145.5
C 15 208 79987 461.22 727 729 171.8
C 14 254 56959 327.22 727 729 171.8
C 3 233 39181 223.76 727 729 171.8
D 2 249 290496 1589.42 721 696 182.3
D 12 233 286674 1568.45 721 696 182.3
D 14 34 274626 1502.38 721 696 182.3

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