VLTI pointing restrictions
The following plots show for each currently offered baseline
configuration (P80/P81) the areas in the
hour angle/Declination space
in which observations are feasible(white)/unfeasible(dark).
Taken into
account are the zenith distance, the delay line restrictions, and the
shadowing effects.
These plots give only an overview, detailed calculations can be
performed with VisCalc.
Restrictions due to the delay line range occur for 2-telescope baselines
UT1-UT4, UT1-3, A0-H0, A0-K0, G1-H0, G1-K0,
and triples
UT1-UT2-UT3, UT1-UT2-UT4, UT1-UT3-UT4, A0-D0-H0, A0-K0-G1, D0-H0-G1.
Restrictions due to shadowing effects occur for configurations
that include any of the stations A0, D0, and E0.
See also the Paranal VLTI overview page.
Offered (P79/P80) 2-telescope baselines for MIDI:
Offered (P79/P80) triples for AMBER:
