ASTROSAT CZTI

Data Quality Report

Orbit 44779

Creation date: 2024-06-27T23:06:26.029173
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_004T12_9000006020_44779cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44779cztM0_level2_quad_clean.evt
Size (bytes)79,528,32010,676,160
Size75.8 MB 10.2 MB
Events in quadrant A954,75165,549
Events in quadrant B926,06953,386
Events in quadrant C323,02880,962
Events in quadrant D687,42171,691

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032720
B031610
C013350
D024720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63717126.844584%
B63725540.031397%
C63710.156986%
D637416.436421%

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 637 637 143 143 22.45% 22.45%
B 637 637 239 239 37.52% 37.52%
C 637 637 3 3 0.47% 0.47%
D 637 637 51 51 8.01% 8.01%

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 13 248 264750 16230.05 69 68 16.3
A 10 83 239145 14659.98 69 68 16.3
A 15 223 157809 9672.53 69 68 16.3
B 4 171 637552 47082.95 59 58 13.5
B 0 189 23481 1729.94 59 58 13.5
B 5 255 19548 1439.46 59 58 13.5
C 3 233 16482 818.83 77 78 20.0
C 2 14 2163 104.08 77 78 20.0
C 14 254 577 24.91 77 78 20.0
D 1 52 199167 9705.83 76 73 20.5
D 2 249 118526 5774.58 76 73 20.5
D 13 249 25720 1250.29 76 73 20.5

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