ASTROSAT CZTI

Data Quality Report

Orbit 06537

Creation date: 2024-06-27T15:08:30.567684
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/AS1G06_091T01_9000000880_06537cztM0_level2.evt modeM0/AS1G06_091T01_9000000880_06537cztM0_level2_quad_clean.evt
Size (bytes)408,326,400102,456,000
Size389.4 MB 97.7 MB
Events in quadrant A2,831,018677,821
Events in quadrant B3,156,965681,085
Events in quadrant C2,676,057672,047
Events in quadrant D3,279,699638,733

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127812
B0136001
C0125771
D0141721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6208470.757088%
B6208901.449742%
C6208140.225515%
D62081201.932990%

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 7198 6209 13 13 0.18% 0.21%
B 7198 6209 31 31 0.43% 0.50%
C 7198 6209 0 0 0.00% 0.00%
D 7198 6209 95 95 1.32% 1.53%

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 13 251 61200 416.51 704 690 145.3
A 8 15 33520 225.98 704 690 145.3
A 15 174 10446 67.15 704 690 145.3
B 4 170 142191 1041.46 708 691 135.9
B 0 219 126371 925.02 708 691 135.9
B 15 204 42315 306.36 708 691 135.9
C 1 16 22806 140.42 679 682 157.6
C 13 61 5580 31.09 679 682 157.6
C 12 4 2698 12.8 679 682 157.6
D 2 33 341735 2030.77 673 651 168.0
D 2 152 130537 773.33 673 651 168.0
D 13 105 104377 617.57 673 651 168.0

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