ASTROSAT CZTI

Data Quality Report

Orbit 21047

Creation date: 2024-06-27T18:22:55.235963
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/AS1A05_104T04_9000003108_21047cztM0_level2.evt modeM0/AS1A05_104T04_9000003108_21047cztM0_level2_quad_clean.evt
Size (bytes)437,768,64094,201,920
Size417.5 MB 89.8 MB
Events in quadrant A3,121,988616,654
Events in quadrant B3,219,680630,761
Events in quadrant C3,137,522589,600
Events in quadrant D3,347,320573,080

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132452
B0134472
C0133162
D0142052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6348230.362319%
B6348490.771897%
C6348841.323251%
D6348921.449275%

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 7613 6349 0 0 0.00% 0.00%
B 7613 6349 0 0 0.00% 0.00%
C 7613 6349 0 0 0.00% 0.00%
D 7613 6349 60 60 0.79% 0.95%

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 0 226 6957 38.23 811 795 161.2
A 13 254 6884 37.77 811 795 161.2
A 3 137 6447 35.06 811 795 161.2
B 0 230 21677 135.91 812 793 153.7
B 12 111 18422 114.73 812 793 153.7
B 11 111 15970 98.77 812 793 153.7
C 14 238 125017 685.49 771 776 181.2
C 10 91 5720 27.28 771 776 181.2
C 13 61 5318 25.06 771 776 181.2
D 1 52 134568 711.36 775 753 188.1
D 2 14 113228 597.92 775 753 188.1
D 8 0 98617 520.24 775 753 188.1

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