ASTROSAT CZTI

Data Quality Report

Orbit 46111

Creation date: 2024-06-27T23:19:21.836080
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/AS1C07_001T10_9000006170_46111cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46111cztM0_level2_quad_clean.evt
Size (bytes)745,934,40092,666,880
Size711.4 MB 88.4 MB
Events in quadrant A5,947,285718,787
Events in quadrant B3,152,801778,832
Events in quadrant C3,177,136750,541
Events in quadrant D14,847,188118,993

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220201
B0136041
C0138112
D0483351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62833195.077192%
B6283811.289193%
C62821442.292264%
D6282537785.593760%

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 7503 6284 46 46 0.61% 0.73%
B 7503 6284 6 6 0.08% 0.10%
C 7502 6282 62 62 0.83% 0.99%
D 7502 6283 4881 4881 65.06% 77.69%

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 3000168 20181.01 724 710 148.6
A 14 235 131278 878.49 724 710 148.6
A 13 254 9531 59.35 724 710 148.6
B 0 190 68968 475.77 741 718 143.5
B 3 112 40908 280.16 741 718 143.5
B 5 172 29979 203.98 741 718 143.5
C 14 254 287222 1676.93 734 739 170.8
C 3 233 12347 67.95 734 739 170.8
C 3 9 9153 49.25 734 739 170.8
D 2 37 12360665 119864.4 401 387 103.1
D 8 129 673828 6530.72 401 387 103.1
D 1 52 81944 790.9 401 387 103.1

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