ASTROSAT CZTI

Data Quality Report

Orbit 29414

Creation date: 2024-06-27T20:03:52.743032
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_102T11_9000004230_29414cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29414cztM0_level2_quad_clean.evt
Size (bytes)588,026,88094,924,800
Size560.8 MB 90.5 MB
Events in quadrant A3,146,165630,776
Events in quadrant B3,993,880633,830
Events in quadrant C5,192,539595,552
Events in quadrant D5,062,640587,707

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126921
B0156081
C0198211
D0191911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6104981.605505%
B61052704.422604%
C61053255.323505%
D61053305.405405%

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 7329 6105 0 0 0.00% 0.00%
B 7330 6106 98 98 1.34% 1.60%
C 7330 6106 20 20 0.27% 0.33%
D 7330 6106 213 213 2.91% 3.49%

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 13 254 11301 64.56 815 802 162.6
A 3 137 7386 40.49 815 802 162.6
A 0 226 7021 38.24 815 802 162.6
B 10 245 633926 4262.06 789 772 148.6
B 0 229 183741 1231.65 789 772 148.6
B 0 190 29909 196.14 789 772 148.6
C 3 233 2094977 12070.62 756 764 173.5
C 14 238 129232 740.46 756 764 173.5
C 2 114 14118 76.97 756 764 173.5
D 8 195 1011765 5596.16 769 750 180.7
D 1 52 514617 2844.35 769 750 180.7
D 7 80 389472 2151.65 769 750 180.7

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