ASTROSAT CZTI

Data Quality Report

Orbit 30092

Creation date: 2024-06-27T20:10:41.631059
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/AS1A10_050T05_9000004330_30092cztM0_level2.evt modeM0/AS1A10_050T05_9000004330_30092cztM0_level2_quad_clean.evt
Size (bytes)544,919,040107,496,000
Size519.7 MB 102.5 MB
Events in quadrant A3,351,261710,003
Events in quadrant B5,849,532710,699
Events in quadrant C3,425,576702,803
Events in quadrant D3,449,306691,762

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138882
B0216132
C0140702
D0141862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6310390.618067%
B63103205.071315%
C63101021.616482%
D6310230.364501%

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 7595 6311 7 7 0.09% 0.11%
B 7595 6311 175 175 2.30% 2.77%
C 7595 6311 0 0 0.00% 0.00%
D 7595 6311 9 9 0.12% 0.14%

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 13 98911 594.24 836 822 165.1
A 8 192 24732 144.85 836 822 165.1
A 13 254 11873 66.95 836 822 165.1
B 6 159 1815450 11840.88 820 799 153.3
B 0 229 725020 4725.66 820 799 153.3
B 0 190 82508 533.16 820 799 153.3
C 14 238 156193 812.33 821 828 191.3
C 14 254 34842 177.84 821 828 191.3
C 2 114 15002 74.11 821 828 191.3
D 8 195 118771 609.14 823 808 193.7
D 13 104 38515 194.71 823 808 193.7
D 2 250 31438 158.17 823 808 193.7

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