ASTROSAT CZTI

Data Quality Report

Orbit 11596

Creation date: 2024-06-27T16:15:41.588475
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_130T04_9000001704_11596cztM0_level2.evt modeM0/AS1A04_130T04_9000001704_11596cztM0_level2_quad_clean.evt
Size (bytes)702,630,72071,651,520
Size670.1 MB 68.3 MB
Events in quadrant A9,427,285362,130
Events in quadrant B4,864,729457,378
Events in quadrant C2,980,067456,835
Events in quadrant D3,568,391440,117

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0324872
B0187881
C0132641
D0148841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6483251538.793768%
B64834697.234305%
C64831041.604196%
D64831732.668518%

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 7309 6485 1756 1756 24.03% 27.08%
B 7309 6485 223 223 3.05% 3.44%
C 7309 6485 0 0 0.00% 0.00%
D 7309 6485 57 57 0.78% 0.88%

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 8 5 6598932 52120.27 619 606 126.6
A 1 162 145595 1145.27 619 606 126.6
A 1 178 87028 682.64 619 606 126.6
B 4 239 1066002 7180.52 772 752 148.4
B 3 64 434580 2924.3 772 752 148.4
B 11 51 112812 755.36 772 752 148.4
C 13 61 5501 26.77 763 765 176.9
C 12 4 5048 24.21 763 765 176.9
C 3 202 1903 6.43 763 765 176.9
D 1 52 180080 979.96 764 739 183.0
D 13 122 131535 714.7 764 739 183.0
D 8 195 120932 656.76 764 739 183.0

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