| Jan. 01 (A) | Apr. 01 (B) | Aug. 01 (C) | Nov. 01 (D) | |||||
| Source1 | Diam. (mas) | Width | Diam. (mas) | Width | Diam. (mas) | Width | Diam. (mas) | Width |
| o Cet [1] | 73.0 | 6.0 | 72.4 | 4.7 | 60.0 | 4.3 | 75.6 | 3.7 |
| o Cet [2] | 67.6 | 4.7 | 64.4 | 6.1 | 65.6 | 5.5 | 75.4 | 4.4 |
| U Ori [1] | 29.3 | 0.9 | 28.0 | 0.7 | 29.8 | 0.4 | 30.2 | 0.6 |
| U Ori [2] | 27.8 | 0.9 | 27.5 | 0.5 | 27.5 | 0.8 | 27.3 | 0.6 |
| R Leo [1] | 59.2 | 1.7 | 51.2 | 2.2 | 57.9 | 7.0 | 61.2 | 3.6 |
| R Leo [2] | 56.1 | 1.6 | 49.3 | 2.2 | 51.3 | 4.3 | 61.2 | 2.2 |
| W Hya [1] | 83.6 | 5.0 | ||||||
| W Hya [2] | 76.1 | 3.7 | ||||||
| S CrB [1] | 19.5 | 1.2 | 19.3 | 1.0 | 20.0 | 0.6 | 23.4 | 1.2 |
| S CrB [2] | 18.3 | 0.9 | 19.3 | 0.7 | 18.8 | 0.4 | 19.3 | 0.8 |
| U Her [1] | 26.6 | 2.2 | 26.7 | 1.6 | 24.2 | 1.0 | 23.7 | 1.3 |
| U Her [2] | 24.5 | 1.6 | 23.7 | 1.0 | 21.3 | 1.3 | 21.0 | 1.0 |
| R Aqr [1] | 32.6 | 1.5 | 32.6 | 1.3 | ||||
| R Aqr [2] | 32.8 | 1.6 | 31.1 | 1.3 | ||||
| R Cas [1] | 49.0 | 3.0 | 50.8 | 2.1 | ||||
| R Cas [2] | 44.5 | 5.4 | 47.3 | 2.1 |
1 [1] denotes
,
J=1-0 transition of SiO at 43.1 GHz. [2] denotes
,
J=1-0 transition of SiO at 42.8 GHz.