ASTROSAT CZTI

Data Quality Report

Orbit 04214

Creation date: 2024-06-27T14:38:54.001680
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_04214cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04214cztM0_level2_quad_clean.evt
Size (bytes)551,145,60061,459,200
Size525.6 MB 58.6 MB
Events in quadrant A4,732,684339,432
Events in quadrant B3,284,933361,458
Events in quadrant C3,079,345351,148
Events in quadrant D5,142,039343,278

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184953
B0140602
C0137582
D0199762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66704556.821589%
B6670971.454273%
C6670480.719640%
D66705988.965517%

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 7635 6671 240 240 3.14% 3.60%
B 7635 6671 0 0 0.00% 0.00%
C 7635 6671 0 0 0.00% 0.00%
D 7634 6670 406 406 5.32% 6.09%

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 1328599 8305.48 783 765 159.9
A 0 199 225069 1403.0 783 765 159.9
A 3 1 57061 352.13 783 765 159.9
B 15 204 53043 335.94 812 795 155.5
B 14 167 35402 222.52 812 795 155.5
B 3 0 22656 140.56 812 795 155.5
C 9 144 46219 251.15 772 775 180.9
C 10 65 6688 32.68 772 775 180.9
C 13 61 6463 31.44 772 775 180.9
D 2 232 1438581 7899.34 751 729 182.0
D 11 132 305747 1675.72 751 729 182.0
D 9 85 196146 1073.59 751 729 182.0

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