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Joint VLA/VLBA/GBT Proposals

  • Proposals requesting multiple NRAO telescopes (VLA, VLBA, GBT) are considered joint proposals unless they are pure VLBI proposals in which the GBT, phased VLA ("Y27"), and/or a single VLA antenna ("Y1") are requested as part of a VLBI array. In general, joint proposals must be submitted as separate proposals to all telescopes requested. The Proposal Submission Tool is required for joint proposals using the VLA and the GBT; for proposals requesting use of the VLBA, the VLBI LaTeX form must be used. Joint proposals should include the same scientific and technical justifications.

  • An exception to this policy is the use of the VLA for finding calibration sources, for polarization calibration, or pulsar phase determination in support of a VLBA proposal. In these cases, VLA time can be requested directly from the VLBA proposal. On the LaTeX cover sheet, the VLA should be filled in under "Non-VLBI Instruments". Justification for the use of the VLA for this purpose should be included in the Scientific or Technical sections of the proposal. Similarly, for VLBI proposals that wish to include the GBT, phased VLA ("Y27"), and/or a single VLA antenna ("Y1") as elements of the VLBI array, simply fill out the standard VLBI cover sheet, list the appropriate antennas as "other NRAO", and include the appropriate reasoning in the justification regarding the need for the GBT and/or one or all of the VLA antennas.

Modified on [an error occurred while processing this directive] by Jim Ulvestad