ASTROSAT CZTI

Data Quality Report

Orbit 04267

Creation date: 2024-06-27T14:39:34.868271
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/AS1G05_240T01_9000000536_04267cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04267cztM0_level2_quad_clean.evt
Size (bytes)524,243,52081,601,920
Size500.0 MB 77.8 MB
Events in quadrant A3,264,657513,040
Events in quadrant B5,151,980505,855
Events in quadrant C3,150,937496,432
Events in quadrant D3,854,334487,947

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140393
B0201672
C0140862
D0160122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6709711.058280%
B6709951.416008%
C6709951.416008%
D67091442.146371%

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 7809 6709 2 2 0.03% 0.03%
B 7809 6709 4 4 0.05% 0.06%
C 7809 6709 38 38 0.49% 0.57%
D 7809 6709 85 85 1.09% 1.27%

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 0 50 84026 507.96 801 783 163.9
A 8 15 72766 439.25 801 783 163.9
A 0 199 12158 69.41 801 783 163.9
B 3 0 1923285 12633.67 798 783 152.2
B 15 204 55420 359.05 798 783 152.2
B 8 3 30013 192.08 798 783 152.2
C 9 144 120328 654.1 770 773 182.8
C 8 128 7722 38.02 770 773 182.8
C 9 54 7113 34.69 770 773 182.8
D 2 232 412249 2161.76 778 756 190.4
D 13 239 180515 944.36 778 756 190.4
D 2 136 113684 593.26 778 756 190.4

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