ASTROSAT CZTI

Data Quality Report

Orbit 12930

Creation date: 2024-06-27T16:34:17.643397
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_224T03_9000001898_12930cztM0_level2.evt modeM0/AS1A04_224T03_9000001898_12930cztM0_level2_quad_clean.evt
Size (bytes)535,334,400123,266,880
Size510.5 MB 117.6 MB
Events in quadrant A3,925,002846,077
Events in quadrant B5,557,237759,198
Events in quadrant C3,015,745842,937
Events in quadrant D3,255,387813,454

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161211
B0210921
C0137741
D0144561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67731271.875092%
B6773119017.569762%
C6773490.723461%
D6773701.033515%

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 7074 6777 37 37 0.52% 0.55%
B 7073 6776 747 747 10.56% 11.02%
C 7074 6777 0 0 0.00% 0.00%
D 7074 6777 23 23 0.33% 0.34%

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 15 223 233382 1456.87 794 776 159.7
A 15 239 181546 1132.21 794 776 159.7
A 1 162 159210 992.31 794 776 159.7
B 4 239 2428530 18269.27 710 689 132.9
B 3 64 271850 2040.46 710 689 132.9
B 4 48 26594 194.93 710 689 132.9
C 13 61 5715 27.97 772 772 176.7
C 3 233 3059 12.94 772 772 176.7
C 8 222 2323 8.78 772 772 176.7
D 1 52 188887 1034.38 769 745 181.9
D 8 195 62130 337.49 769 745 181.9
D 2 14 48922 264.87 769 745 181.9

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