ASTROSAT CZTI

Data Quality Report

Orbit 46360

Creation date: 2024-06-27T23:22:12.724116
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/AS1A13_070T05_9000006198_46360cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46360cztM0_level2_quad_clean.evt
Size (bytes)654,894,72096,039,360
Size624.6 MB 91.6 MB
Events in quadrant A8,840,260559,357
Events in quadrant B3,749,211716,940
Events in quadrant C3,017,810695,139
Events in quadrant D8,144,810495,090

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305041
B0153641
C0134581
D0285081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6323156724.782540%
B63242413.810879%
C6324610.964579%
D6323168326.617112%

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 7343 6324 1132 1132 15.42% 17.90%
B 7344 6325 100 100 1.36% 1.58%
C 7344 6325 11 11 0.15% 0.17%
D 7343 6324 1255 1255 17.09% 19.85%

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 10 83 2883756 21546.81 648 635 133.8
A 0 247 2224651 16621.03 648 635 133.8
A 15 223 784971 5861.68 648 635 133.8
B 5 255 529388 3820.14 712 690 138.4
B 5 172 143216 1029.83 712 690 138.4
B 5 32 47370 337.29 712 690 138.4
C 14 254 172234 1023.93 710 713 167.5
C 11 16 48755 286.8 710 713 167.5
C 3 233 14191 80.46 710 713 167.5
D 5 235 3188331 19804.5 636 615 161.0
D 1 52 2003559 12443.8 636 615 161.0
D 12 233 119093 736.07 636 615 161.0

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