ASTROSAT CZTI

Data Quality Report

Orbit 47630

Creation date: 2024-07-19T12:21:02.237736
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/AS1A13_071T01_9000006340_47630cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47630cztM0_level2_quad_clean.evt
Size (bytes)425,062,08098,827,200
Size405.4 MB 94.2 MB
Events in quadrant A6,392,298648,814
Events in quadrant B2,997,682673,761
Events in quadrant C2,814,495644,823
Events in quadrant D3,051,942595,316

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235451
B0131752
C0128401
D0134261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61552474.012998%
B6155841.364744%
C6155460.747360%
D6155781.267262%

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 7115 6156 88 88 1.24% 1.43%
B 7115 6156 26 26 0.37% 0.42%
C 7115 6156 19 19 0.27% 0.31%
D 7115 6156 44 44 0.62% 0.71%

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 10 83 3264566 22830.75 686 672 143.0
A 9 191 249712 1742.02 686 672 143.0
A 13 248 162152 1129.54 686 672 143.0
B 5 172 209632 1542.1 682 661 135.5
B 5 255 27561 198.51 682 661 135.5
B 4 171 25629 184.25 682 661 135.5
C 14 254 109165 668.28 680 682 162.3
C 3 233 26735 160.49 680 682 162.3
C 1 3 23090 138.04 680 682 162.3
D 2 249 124909 732.41 679 658 169.6
D 2 120 123035 721.36 679 658 169.6
D 6 239 108035 632.94 679 658 169.6

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