1. ALMA Cycle 5
Hiroshi Nagai
(NAOJ)

2. Cy5 timeline
21 March 2017
Release of the ALMA Cycle 5 Call for Proposals and Observing Tool, and opening of archive for proposal submission
20 April 2017
Proposal deadline
End of July 2017
Result of the proposal review sent to Proposers
15 September 2017
Submission of Phase 2 by Proposers
October 2017
Start of ALMA Cycle 5 observations
September 2018
End of Cycle 5 observations
It is anticipated that 4000 hours of 12-m Array time will be available for successful observations of approved projects, and 3000 hours will be available on the Atacama Compact Array (ACA).

3. Cy5 Capabilities At least forty-three antennas in the 12-m Array
At least ten 7-m antennas (for short baselines) and three 12-m antennas (for making single-dish maps) in the ACA
Receiver bands 3, 4, 5, 6, 7, 8, 9 and 10 (wavelengths of about 3.1, 2.1, 1.6, 1.3, 0.87, 0.74, 0.44 and mm, respectively)
Baseline length
Maximum baselines of 3.6 km for Bands 8, 9 and 10
Maximum baselines of 8.5 km for Band 7
Maximum baselines of 16 km for Bands 3, 4, 5 and 6

4. Cy5 Capabilities Spectral line, continuum, and mosaic observations
Spectral line and continuum observations with the 12-m Array and the 7-m Array in all bands
Single field interferometry (all bands) and mosaics (Bands 3 to 9) with the 12-m Array and the 7-m Array
Single dish spectral line observations in Bands 3 to 8
Polarization
Single pointing, on axis, full (linear) polarization for continuum and full spectral resolution observations in Band 3, 4, 5, 6 and 7 on the 12-m Array.

5. Proposal Type
Regular Proposals may request up to 50 hours of 12-m Array time or up to 150 hours of ACA stand- alone time.
Large Programs may request more than 50 hours of 12-m Array time or more than 150 hours of ACA stand-alone time. Up to 600 hours of 12-m Array time and 450 hours of ACA stand-alone time will be allocated to Large Programs.

6. VLBI
Proposals will be accepted for Very Long Baseline Interferometry (VLBI) observations with ALMA in Bands 3 and 6 (wavelengths 3 mm and 1.3 mm) in the continuum only. ALMA VLBI observations will be made in concert with an existing VLBI network: the Global mm-VLBI Array (GMVA) at 3 mm and the NRAO/Event Horizon Telescope Consortium (EHTC) network at 1.3 mm. In addition to submitting an ALMA proposal, proposers of 3-mm VLBI observations must also submit a proposal to the GMVA by its 1 February 2017 deadline.
There is a cap for VLBI of 5% of ALMA Cycle 5 observing time.

7. GMVA+ALMA
The number of ALMA dishes possible in the phased array is likely to be (but see below). GMVA session dates during Cycle 5 are not yet fixed, but Session I in 2018, which is likely to be in March or April, should provide an opportunity for GMVA + ALMA observing. GMVA Session II in Fall 2018 may also overlap with ALMA Cycle 5 in a configuration suitable for VLBI.

8. Resubmission of Cy4 proposals
The outcome of scheduled GMVA+ALMA Cycle 4 observations in April 2017 is unlikely to be known until after the ALMA Cycle 5 proposal deadline. If the PI of awarded GMVA+ALMA Cycle 4 time wishes to mitigate against the possibility that these observations are not completed successfully, the proposal must be resubmitted to ALMA by the Cycle 5 proposal deadline and undergo a new review. The proposal does not need to be resubmitted to the GMVA in this case.

9. VLBI - Proposal review
All GMVA+ALMA proposals will be reviewed by GMVA proposal review committee and ALMA proposal review committee independently.
Approved by both GMVA and ALMA -> Will be observed
Approved by GMVA, but decline by ALMA ->??
Two instances in Cy4 -> will be observed only with GMVA
Approved by ALMA, but decline by GMVA ->??
One instance in Cy4 -> will be observed with GMVA+ALMA
Not clear if the GMVA outcomes will pass to ALMA PRC

10. Proposal format (3mm) Not clear at this moment.
In the previous cycle, the same content of proposal had to be submitted to both ALMA and GMVA with some possible modification to adjust the proposal format in each observatory.

11. Keep watching relevant information
3mm-vlbi-in-cycle-5
proposals/lbo_2017b/vlba-and-extd