Does Prism use J2000 or Jnow?

[dan_adrian]

Hello,
I recently received a 10 Micron 2000 HPS. It preferably uses Jnow.
Does Prism v.11 send the coords as J2000 or Jnow when communicating with the mount?

This is from the 10M mount ascom driver manual:

Code : Tout sélectionner

	Use J2000.0 ICRS Coordinates: check this if you want the ASCOM
        driver to report (and use) the J2000.0 coordinate system. Usually,
        the driver will report (and use) the Local Topocentric coordinate
        system for communicating with the client. Both choices are
        ASCOM-compliant, but if you choose this the ASCOM driver will
        perform some coordinate conversions internally. This will have
        two effects. First, the communication between the driver and
        the mount is increased, because much data is needed for the
        conversion. Second, the TargetRightAscension and TargetDeclination
        properties will be buffered into the driver instead of being
        communicated directly to the mount.

Thank you

[Cyril Cavadore]

It can do both, according to ASCOM driver capabilities of the mount.
Prism slaves this info from the ascom driver data and does the proper conversion.

[dan_adrian]

Thank you, Prism works great with 10M mounts. I also use Prism to build the pointing model for the 10M mount.