ASTROSAT CZTI

Data Quality Report

Orbit 44163

Creation date: 2024-06-27T22:59:57.115508
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/AS1A13_080T06_9000005954_44163cztM0_level2.fits modeM0/AS1A13_080T06_9000005954_44163cztM0_level2_quad_clean.evt
Size (bytes)816,431,040145,779,840
Size778.6 MB 139.0 MB
Events in quadrant A11,609,375850,008
Events in quadrant B6,497,2781,007,922
Events in quadrant C4,729,716997,857
Events in quadrant D6,622,077874,564

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01980
B01980
C01980
D01980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0417561
B0259251
C0215511
D0265182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9856193419.622565%
B98574874.940651%
C98572142.171046%
D98565996.077516%

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 10136 9857 1522 1522 15.02% 15.44%
B 10137 9858 197 197 1.94% 2.00%
C 10137 9858 95 95 0.94% 0.96%
D 10136 9857 406 406 4.01% 4.12%

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 15 223 5699334 27565.59 997 976 206.7
A 10 83 1912791 9248.33 997 976 206.7
A 7 3 64137 305.54 997 976 206.7
B 5 172 390853 1922.66 1046 1011 202.8
B 15 219 384159 1889.64 1046 1011 202.8
B 5 235 380631 1872.24 1046 1011 202.8
C 14 254 592591 2455.98 1035 1042 240.9
C 15 157 21587 85.3 1035 1042 240.9
C 14 96 19387 76.16 1035 1042 240.9
D 13 249 678950 2629.46 1017 982 257.8
D 4 235 307045 1187.05 1017 982 257.8
D 12 233 238784 922.3 1017 982 257.8

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