ASTROSAT CZTI

Data Quality Report

Orbit 47448

Creation date: 2024-07-07T04:53:43.631899
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_089T01_9000006330_47448cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47448cztM0_level2_quad_clean.evt
Size (bytes)462,245,760108,149,760
Size440.8 MB 103.1 MB
Events in quadrant A6,792,886700,518
Events in quadrant B3,331,638746,094
Events in quadrant C2,932,938718,734
Events in quadrant D3,541,276649,493

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244853
B0144053
C0135653
D0153763

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65953164.791509%
B6595941.425322%
C6595260.394238%
D65951352.047005%

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 7550 6597 96 96 1.27% 1.46%
B 7550 6597 14 14 0.19% 0.21%
C 7550 6597 1 1 0.01% 0.02%
D 7550 6597 98 98 1.30% 1.49%

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 3844639 25056.31 735 717 153.4
A 9 191 95487 617.75 735 717 153.4
A 3 137 8702 52.05 735 717 153.4
B 5 32 188453 1251.53 752 728 150.0
B 0 198 44953 294.84 752 728 150.0
B 12 3 33055 215.52 752 728 150.0
C 3 233 18871 103.89 739 743 174.5
C 0 207 13139 71.04 739 743 174.5
C 1 3 11227 60.08 739 743 174.5
D 2 249 466639 2512.05 728 703 185.5
D 12 128 96070 514.16 728 703 185.5
D 8 176 88697 474.41 728 703 185.5

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