Australian ESO Proposal Statistics

Period101 (Apr - Sep 2018)102 (Oct 2018 - Mar 2019)103 (Apr - Sep 2019)104 (Oct 2019 - Mar 2020)105 (Apr - Sep 2020)106 (Oct 2020 - Mar 2021)
No. of Australian-led proposals554344344958
Fraction of all ESO proposals6.10%4.70%4.80%3.70%5.80%5.40%
No. of runs requested [1]797271437174
No. of Large Programmes requested [2]1222N/A1
Service Mode hours requested9007931325127710821462
Visitor Mode hours requested42658429716097188
VLT/I hours requested11369211296125111161190
VLT oversubscription [3]3.14.33.232.3~2.8
Top 3 requested instruments (Runs, requested, Hrs, requested)FLAMES (23, 361); MUSE (11, 173); X-shooter (11, 157)HARPS (13, 432); FLAMES (18, 290); MUSE (11, 192)MUSE (12, 475); FLAMES (19, 303); X-shooter (10, 187)MUSE (15, 810); X-shooter (10, 124); UVES/FLAMES (3, 96 each)UVES (11, 325); MUSE (16, 222); X-shooter (10, 212)MUSE (22, 537); X-shooter (8, 166); UVES (7, 116)
SM Runs allocated201613112214
VM Runs allocated734301
Total VLT/I time allocated348.5 hrs304 hrs144 hrs330 hrs493 hrs92 hrs [5]
Australian share of VLT/I time [4]7.50%7.20%3.20%7.00%10.40%~2.1% [5]

Notes to Table:

[1] A single proposal can request more than 1 run, e.g. 3 different instruments on 2 different telescopes = 3 runs.

[2] A Large Programme is one requiring a minimum of 100 hours of ESO telescope time, spread over 1 to 4 Periods. From Period 104 onwards, Large Programmes may only be submitted in even-numbered Periods.

[3] Since Australia has no set share of VLT time, the actual oversubscription is only known after the OPC has met.

[4] Fraction of all OPC-allocatable time on the 4 UTs (including VLTI time) allocated to Australian-led programmes, relative to the time allocated to ESO members states + Australia only. These fractions are calculated by the OPO in Dec each year for the 2 most recently completed Periods. For comparison Australia’s Net National Income is ~7.5% of the total for all ESO member states + Australia.

[5] New programs only; does not include the 114 hr of Australian Priority A programs from P105 carried over into P106 due to COVID shutdown, as well as the remaining 224 hrs of the MAGPI Large Program allocation from P104.