ASTROSAT CZTI

Data Quality Report

Orbit 32066

Creation date: 2024-06-27T20:36:04.688017
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_109T01_9000004682_32066cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32066cztM0_level2_quad_clean.evt
Size (bytes)695,473,920113,135,040
Size663.3 MB 107.9 MB
Events in quadrant A4,033,307752,229
Events in quadrant B6,464,072738,776
Events in quadrant C4,351,018710,544
Events in quadrant D5,683,958679,884

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164773
B0246363
C0174183
D0218383

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78322933.741062%
B78334986.357717%
C78334045.157666%
D78334956.319418%

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 8862 7833 0 0 0.00% 0.00%
B 8863 7833 40 40 0.45% 0.51%
C 8863 7833 12 12 0.14% 0.15%
D 8863 7833 275 275 3.10% 3.51%

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 14202 63.06 1040 1019 209.1
A 15 174 13793 61.1 1040 1019 209.1
A 3 137 10361 44.68 1040 1019 209.1
B 6 159 2055849 10532.05 1010 984 195.1
B 10 245 157584 802.64 1010 984 195.1
B 5 172 128323 652.67 1010 984 195.1
C 0 10 221995 958.95 985 993 230.5
C 14 238 159144 686.23 985 993 230.5
C 14 225 46847 198.96 985 993 230.5
D 12 227 1193390 5033.56 994 969 236.9
D 12 233 276415 1162.74 994 969 236.9
D 8 195 257609 1083.35 994 969 236.9

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