Note there were 2 typos in the previous list of landing site ellipse centers. Listed below are the correct center coordinates of the landing site ellipses for all high-priority sites being ROTO imaged and all nadir only landing site ellipses. This list accompanies the individual maps of the high-priority ROTO sites that have already been distributed. Six high-priority areas remain under consideration, which include 12 individual ellipses. Eight nadir only imaging areas remain under consideration (excluding the two sites in Candor Chasma and the site in Ganges Chasma), which include 14 individual ellipses. The maps of these nadir sites are attached in this and an accompanying e-mail. The list includes the area, the site number and the ellipse center latitude and longitude in the MDIM-2 coordinate system. We will request removal of the two Candor and Ganges Chasma sites from consideration on safety grounds in a memo in the near future.

TM20B 1.99S, 6.01W

TM21B 2.50S, 3.40W

TM19B 1.20S, 5.30W

TM10A 2.20S, 6.30W

TM9A 1.20S, 5.60W

VM53A 9.07S, 76.43W

B Site 9.07S, 76.43W

EP82A 5.81S, 222.23W

EP55A (S) 15.00S, 184.87W

VM41A 13.34S, 41.39W

IP98B 4.64N, 275.88W

IP85A 4.7N, 274.68W

TM22B 3.40S, 7.20 W

TM23B 3.10S, 3.10W

TM12A 3.60S, 2.90W

TM11A 3.40S, 6.90W

EP64A 15.30S, 197.44W

EP69A 9.20S, 209.60W

IP84A 4.50N, 271.90W

IP96B 4.48N, 271.60W

TM15A 8.60S, 7.1W

TM16A 9.36S, 6.75W

TM13A 3.00S, 10.00W

TM24B 2.80S, 10.10W

VM37A 11.10S, 38.05W

VM44A 13.10S, 62.50W

VM42A 7.66S, 51.30W

Ellipse size and orientation varies with latitude and was estimated from the graphs below for MER A and B (for the opening of the launch periods).

Ellipse size and orientation for MER A landing sites.

Ellipse size and orientation for MER B landing sites.