ASTROSAT CZTI

Data Quality Report

Orbit 32252

Creation date: 2024-06-27T20:38:06.333648
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/AS1T04_054T01_9000004694_32252cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32252cztM0_level2_quad_clean.evt
Size (bytes)545,523,84090,043,200
Size520.3 MB 85.9 MB
Events in quadrant A3,039,297592,355
Events in quadrant B4,980,275602,572
Events in quadrant C3,486,889570,287
Events in quadrant D4,599,144532,826

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127242
B0190521
C0140941
D0178061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6137300.488838%
B61371452.362718%
C61371532.493075%
D61372063.356689%

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 7397 6138 0 0 0.00% 0.00%
B 7397 6138 23 23 0.31% 0.37%
C 7397 6138 29 29 0.39% 0.47%
D 7397 6138 127 127 1.72% 2.07%

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 11631 69.13 783 769 157.1
A 13 6 11173 66.21 783 769 157.1
A 3 137 7459 42.58 783 769 157.1
B 6 159 1703044 11573.59 783 764 147.1
B 10 247 66119 444.34 783 764 147.1
B 4 80 52362 350.81 783 764 147.1
C 0 10 216354 1223.5 753 758 176.2
C 3 233 141988 801.48 753 758 176.2
C 14 238 128700 726.07 753 758 176.2
D 8 195 1297035 7261.61 740 721 178.5
D 12 233 327312 1829.48 740 721 178.5
D 2 250 80114 444.74 740 721 178.5

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