ASTROSAT CZTI

Data Quality Report

Orbit 48452

Creation date: 2024-09-12T22:18:29.338907
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_029T01_9000006426_48452cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48452cztM0_level2_quad_clean.evt
Size (bytes)601,560,000117,406,080
Size573.7 MB 112.0 MB
Events in quadrant A7,936,610794,512
Events in quadrant B4,554,737787,018
Events in quadrant C3,288,138785,810
Events in quadrant D5,896,278655,651

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292620
B0190840
C0155991
D0228790

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76411832.394974%
B76413544.632901%
C764050.065445%
D764077410.130890%

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 7641 7641 60 60 0.79% 0.79%
B 7641 7641 251 251 3.28% 3.28%
C 7640 7640 0 0 0.00% 0.00%
D 7640 7640 657 657 8.60% 8.60%

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 4449583 24923.89 844 823 178.5
A 13 248 222365 1241.17 844 823 178.5
A 13 254 14461 76.41 844 823 178.5
B 12 16 1073858 6547.75 822 796 163.9
B 5 255 171263 1040.18 822 796 163.9
B 8 234 30997 184.28 822 796 163.9
C 15 208 38302 190.65 828 831 196.5
C 14 254 9214 42.65 828 831 196.5
C 14 67 6513 28.91 828 831 196.5
D 12 2 1466253 7343.07 791 765 199.6
D 2 249 514521 2574.26 791 765 199.6
D 5 222 406127 2031.13 791 765 199.6

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