ASTROSAT CZTI

Data Quality Report

Orbit 48130

Creation date: 2024-08-22T09:01:42.132983
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/AS1T05_223T01_9000006402_48130cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48130cztM0_level2_quad_clean.evt
Size (bytes)403,119,36086,728,320
Size384.4 MB 82.7 MB
Events in quadrant A7,122,978722,419
Events in quadrant B1,153,82543,756
Events in quadrant C2,904,160721,000
Events in quadrant D3,204,933661,887

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258032
B071712
C0138722
D0147072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67924126.065960%
B6792679199.985277%
C6792210.309187%
D6792821.207303%

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 7612 6793 69 69 0.91% 1.02%
B 7612 6792 1 1 0.01% 0.01%
C 7611 6791 1 1 0.01% 0.01%
D 7611 6791 40 40 0.53% 0.59%

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 4225988 28059.62 725 710 150.6
A 13 248 62632 411.22 725 710 150.6
A 13 6 17319 110.3 725 710 150.6
B 2 177 940022 83358.47 45 44 11.3
B 4 21 11123 982.5 45 44 11.3
B 4 171 9194 811.43 45 44 11.3
C 14 254 37329 217.15 726 727 168.6
C 12 2 13090 73.35 726 727 168.6
C 11 16 9256 50.6 726 727 168.6
D 12 233 133362 737.49 723 701 179.9
D 2 37 118424 654.44 723 701 179.9
D 2 249 43696 239.02 723 701 179.9

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