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Table 1
AMBER Observations of targets in Orion.
| Target | Other | Date | Projected baselines | Calibrator(s) | ||
| name | ||||||
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| θ1 Ori C | PAR 1891, HD 37022 | K0-I1 | A0-I1 | A0-K0 | ||
| 05/10/10 | 44 m; 8° | 110 m; –89° | 123 m; 70° | HD 32613, HD 34137 | ||
| K0-G1 | G1-A0 | A0-K0 | ||||
| 26/12/10 | 87 m; 29° | 88 m; –65° | 128 m; 72° | HD 32613, HD 33238 | ||
| 27/12/10 | 84 m; 22° | 90 m; –67° | 122 m; 70° | HD 32613, HD 33238 | ||
| θ1 Ori A | PAR 1865, HD 37020 | K0-I1 | G1-I1 | G1-K0 | ||
| 14/12/10 | 44 m; 174° | 38 m; –158° | 79 m; –172° | HD 32613, HD 33238 | ||
| 29/10/11 | 44 m; 171° | 37 m; –162° | 79 m; –176° | HD 40605, HD 33238 | ||
| θ1 Ori D | PAR 1889, HD 37023 | K0-I1 | I1-G1 | G1-K0 | ||
| 14/12/10* | 43 m; 180° | 40 m; –150° | 81 m; –166° | HD 33238, HD 47667 | ||
| 29/10/11* | 43 m; 177° | 41 m; –147° | 81 m; –163° | HD 33238 | ||
| 30/10/11 | 43 m; 175° | 38 m; –156° | 79 m; –171° | HD 32613 | ||
| U1-U3 | U3-U4 | U1-U4 | ||||
| 17/01/11 | 102 m; 38° | 58 m; –113° | 130 m; 64° | HD 34137, HD 33238 | ||
| 09/01/07∗ | 101 m; 40° | 43 m; 125° | 113 m; 62° | HD 41547 | ||
| θ2 Ori A | PAR 1993, HD 37041 | A1-K0 | A1-G1 | G1-K0 | ||
| 01/01/12 | 128 m; –113° | 74 m; 110° | 90 m; –147° | HD 34137, HD 40605 | ||
| NU Ori | PAR 2074, HD 37061 | K0-G1 | G1-A0 | A0-K0 | ||
| 26/03/11 | 90 m; –144° | 68 m; –52° | 111 m; –106° | HD 32613, HD 40605 | ||
| 27/03/11∗ | 89 m ; –144° | 60 m; –45° | 99 m; –107° | HD 33238, HD 40605 | ||
| A1-G1 | G1-K0 | A1-K0 | ||||
| 31/12/11 | 80 m; 107° | 86 m; –153° | 127 m; –115° | HD 32613, HD 40605 | ||
| V* T Ori | PAR 2247, BD-05 1329 | U1-U3 | U3-U4 | U1-U4 | ||
| 18/01/11 | 102 m; 40° | 53 m; 116° | 126 m; 64° | HD 34137 | ||
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