ASTROSAT CZTI

Data Quality Report

Orbit 44946

Creation date: 2024-06-27T23:08:16.283688
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_017T02_9000006032_44946cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44946cztM0_level2_quad_clean.evt
Size (bytes)1,079,634,240219,746,880
Size1.0 GB 209.6 MB
Events in quadrant A10,890,1101,471,173
Events in quadrant B7,706,6721,514,334
Events in quadrant C6,651,4291,490,703
Events in quadrant D13,644,4771,219,187

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02780
B02780
C02780
D02780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0429701
B0325361
C0297141
D0501821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A138683462.494952%
B138684573.295356%
C138691080.778715%
D13869165411.925878%

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 14293 13869 1 1 0.01% 0.01%
B 14293 13869 100 100 0.70% 0.72%
C 14294 13870 24 24 0.17% 0.17%
D 14294 13870 1415 1415 9.90% 10.20%

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 4552355 13343.75 1625 1589 341.0
A 0 243 19999 53.98 1625 1589 341.0
A 13 254 19326 52.01 1625 1589 341.0
B 5 172 421629 1308.27 1619 1569 321.1
B 4 171 210320 650.15 1619 1569 321.1
B 5 255 152451 469.92 1619 1569 321.1
C 14 254 109942 286.42 1603 1613 378.2
C 1 241 86111 223.41 1603 1613 378.2
C 1 3 78881 204.29 1603 1613 378.2
D 13 187 2528162 6422.65 1545 1496 393.4
D 1 52 1528845 3882.44 1545 1496 393.4
D 13 249 1496883 3801.19 1545 1496 393.4

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