ASTROSAT CZTI

Data Quality Report

Orbit 32367

Creation date: 2024-06-27T20:39:24.701631
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/AS1A09_131T01_9000004702_32367cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32367cztM0_level2_quad_clean.evt
Size (bytes)636,710,400125,009,280
Size607.2 MB 119.2 MB
Events in quadrant A2,982,992890,180
Events in quadrant B5,831,842862,846
Events in quadrant C4,303,267871,185
Events in quadrant D5,765,786749,118

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125672
B0215471
C0168121
D0210951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5906631.066712%
B59065048.533695%
C59064748.025737%
D5906108318.337284%

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 7221 5907 0 0 0.00% 0.00%
B 7221 5907 217 217 3.01% 3.67%
C 7221 5907 133 133 1.84% 2.25%
D 7221 5907 764 764 10.58% 12.93%

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 15 174 17886 113.23 764 748 151.4
A 13 6 13808 86.28 764 748 151.4
A 13 254 12623 78.46 764 748 151.4
B 6 159 1817896 13270.29 739 722 136.9
B 5 172 555321 4050.08 739 722 136.9
B 4 80 133308 968.24 739 722 136.9
C 3 233 956954 5643.3 737 742 169.4
C 0 10 190807 1121.71 737 742 169.4
C 14 238 138075 810.5 737 742 169.4
D 8 195 802906 5071.98 661 643 158.2
D 1 47 747076 4719.02 661 643 158.2
D 12 218 597146 3771.15 661 643 158.2

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