ASTROSAT CZTI

Data Quality Report

Orbit 45603

Creation date: 2024-06-27T23:14:06.372807
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_082T02_9000006112_45603cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45603cztM0_level2_quad_clean.evt
Size (bytes)496,154,880116,942,400
Size473.2 MB 111.5 MB
Events in quadrant A6,024,683780,927
Events in quadrant B4,148,694805,844
Events in quadrant C3,338,468778,069
Events in quadrant D4,331,854706,927

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223372
B0168142
C0146052
D0172202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67283054.533294%
B67283675.454816%
C6728901.337693%
D67281632.422711%

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 7878 6728 36 36 0.46% 0.54%
B 7878 6728 154 154 1.95% 2.29%
C 7878 6729 30 30 0.38% 0.45%
D 7878 6729 88 88 1.12% 1.31%

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 2808480 17261.58 792 778 162.7
A 13 248 153835 940.99 792 778 162.7
A 3 137 8741 48.96 792 778 162.7
B 15 201 784005 5116.15 782 758 153.1
B 5 172 187443 1219.42 782 758 153.1
B 0 186 28807 183.22 782 758 153.1
C 14 254 288626 1577.98 776 781 182.4
C 3 233 13723 70.95 776 781 182.4
C 13 61 5191 24.18 776 781 182.4
D 11 241 379832 1942.54 778 756 195.1
D 1 52 174936 892.57 778 756 195.1
D 8 48 137154 698.96 778 756 195.1

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