Most likely you have a start

Forums General Discussion Following JWST through Orion to L2 Most likely you have a start

#585038
Nick James
Participant

Most likely you have a start time set before the launch time. The last line of all those error messages is:

No ephemeris for target “James Webb Space Telescope (spacecraft)” prior to A.D. 2021-DEC-25 12:48:00.0000 UT