ASTROSAT CZTI

Data Quality Report

Orbit 48003

Creation date: 2024-08-13T16:13:36.541988
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_062T02_9000006384_48003cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_48003cztM0_level2_quad_clean.evt
Size (bytes)460,434,240112,561,920
Size439.1 MB 107.3 MB
Events in quadrant A6,862,542741,065
Events in quadrant B3,131,275767,101
Events in quadrant C3,342,339735,830
Events in quadrant D3,156,373669,760

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256630
B0145520
C0150910
D0148320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7101751.056189%
B7102170.239369%
C710270.098564%
D7102260.366094%

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 7101 7101 0 0 0.00% 0.00%
B 7102 7102 3 3 0.04% 0.04%
C 7102 7102 7 7 0.10% 0.10%
D 7102 7102 25 25 0.35% 0.35%

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 3831828 23763.55 771 756 161.2
A 0 31 43364 264.29 771 756 161.2
A 13 254 10154 58.29 771 756 161.2
B 5 32 60018 384.52 769 744 154.2
B 12 111 19955 124.62 769 744 154.2
B 11 111 18406 114.57 769 744 154.2
C 14 254 156875 864.13 762 765 180.7
C 12 250 89101 488.97 762 765 180.7
C 1 3 40692 221.01 762 765 180.7
D 11 224 44241 229.06 761 735 189.9
D 13 171 39565 204.44 761 735 189.9
D 2 165 36841 190.1 761 735 189.9

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