ASTROSAT CZTI

Data Quality Report

Orbit 12412

Creation date: 2024-06-27T16:26:55.312903
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/AS1A04_023T01_9000001842_12412cztM0_level2.evt modeM0/AS1A04_023T01_9000001842_12412cztM0_level2_quad_clean.evt
Size (bytes)670,245,120106,951,680
Size639.2 MB 102.0 MB
Events in quadrant A4,785,240656,799
Events in quadrant B5,613,657653,898
Events in quadrant C4,129,389660,821
Events in quadrant D5,150,326632,903

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201292
B0227122
C0186862
D0217692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91401471.608315%
B91404695.131291%
C9140770.842451%
D91402342.560175%

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 10146 9142 7 7 0.07% 0.08%
B 10146 9141 258 258 2.54% 2.82%
C 10146 9142 0 0 0.00% 0.00%
D 10146 9142 117 117 1.15% 1.28%

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 1 162 151879 685.94 1077 1055 219.9
A 13 251 111569 502.61 1077 1055 219.9
A 12 189 89596 402.68 1077 1055 219.9
B 4 239 710500 3441.98 1062 1034 206.1
B 3 64 459958 2226.47 1062 1034 206.1
B 3 209 81568 390.71 1062 1034 206.1
C 14 234 13838 51.82 1052 1056 246.7
C 8 128 9775 35.34 1052 1056 246.7
C 13 61 7670 26.81 1052 1056 246.7
D 1 52 566167 2228.78 1043 1015 253.6
D 2 14 133315 521.75 1043 1015 253.6
D 10 157 116639 455.98 1043 1015 253.6

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