|
Size: 24170
Comment:
|
← Revision 26 as of 2014-08-08 17:41:11 ⇥
Size: 25439
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 4: | Line 4: |
| This is by no means an exhaustive list of cities. It has most capitol cities, and extreme north/south cities for "tall" countries like the US, Canada, Russia, China, Chile, and Argentina. Numbers cribbed from Wikipedia. Just because the server sky orbit is briefly above the horizon at a far north latitude does not mean access is practical. Orbits go from southern horizon to southern horizon, and it is elevation that matters, especially at night when the arrays that are due south may be eclipsed and in darkness. |
|
| Line 21: | Line 25: |
| ||<-2> 55N 5.3° elevation ||<-2> -48 dB attenuation ||<-2> x22000 relative attenuation || | || 55° || 5.3° elevation ||<-2> -48 dB attenuation ||<-2> x22000 relative attenuation || |
| Line 37: | Line 41: |
| ||<-2> 50N 10.7° elevation ||<-2> -26 dB attenuation ||<-2> x120 relative attenuation || | || 50° || 10.7° elevation ||<-2> -26 dB attenuation ||<-2> x120 relative attenuation || |
| Line 58: | Line 62: |
| || 45°58′N || Baikonur Cosmodrome || Kazakhstan || | |
| Line 64: | Line 69: |
| ||<-2> 45N 16.5° elevation ||<-2> -17 dB attenuation ||<-2> x17 relative attenuation || | || 45° || 16.5° elevation ||<-2> -17 dB attenuation ||<-2> x17 relative attenuation || |
| Line 91: | Line 96: |
| || 40°58′N || Jiuquan Launch Center|| People's Republic of China || | |
| Line 96: | Line 102: |
| ||<-2> 40N 16.5° elevation ||<-2> -17 dB attenuation ||<-2> x6.0 relative attenuation || | || 40° || 22.6° elevation ||<-2> -13 dB attenuation ||<-2> x6.0 relative attenuation || |
| Line 102: | Line 108: |
| || 38°51′N || Taiyuan Launch Ctr || People's Republic of China || | |
| Line 106: | Line 113: |
| || 37°51′N || NASA Wallops Island || United States || | |
| Line 118: | Line 126: |
| ||<-2> 35N 29.2° elevation ||<-2> -10 dB attenuation ||<-2> x3.3 relative attenuation || | || 35° || 29.2° elevation ||<-2> -10 dB attenuation ||<-2> x3.3 relative attenuation || |
| Line 140: | Line 148: |
| || 31°15′N || Uchinoura Space Ctr || Japan || | |
| Line 143: | Line 152: |
| || 30°24′N ||Tanegashima Space Ctr || Japan || | |
| Line 144: | Line 154: |
| ||<-2> 30N 36.3° elevation ||<-2> -8.3 dB attenuation ||<-2> x2.2 relative attenuation || | || 30° || 36.3° elevation ||<-2> -8.3 dB attenuation ||<-2> x2.2 relative attenuation || |
| Line 151: | Line 161: |
| || 28°31′N || Kennedy Space Center || United States || | |
| Line 162: | Line 173: |
| ||<-2> 25N 44.0° elevation ||<-2> -7.1 dB attenuation ||<-2> x1.6 relative attenuation || | || 25° || 44.0° elevation ||<-2> -7.1 dB attenuation ||<-2> x1.6 relative attenuation || |
| Line 177: | Line 188: |
| ||<-2> 20N 52.2° elevation ||<-2> -6.2 dB attenuation ||<-2> x1.4 relative attenuation || | || 20° || 52.2° elevation ||<-2> -6.2 dB attenuation ||<-2> x1.4 relative attenuation || |
| Line 179: | Line 190: |
| || 19°34′N || Wenchang Launch Ctr. || People's Republic of China || | |
| Line 200: | Line 212: |
| ||<-2> 15N 61.0° elevation ||<-2> -5.6 dB attenuation ||<-2> x1.2 relative attenuation || | || 15° || 61.0° elevation ||<-2> -5.6 dB attenuation ||<-2> x1.2 relative attenuation || |
| Line 209: | Line 221: |
| || 13°43′N || Satish Dhawan Launch || India || | |
| Line 228: | Line 241: |
| ||<-2> 10N 70.4° elevation ||<-2> -5.2 dB attenuation ||<-2> x1.1 relative attenuation || | || 10° || 70.4° elevation ||<-2> -5.2 dB attenuation ||<-2> x1.1 relative attenuation || |
| Line 249: | Line 262: |
| ||<-2> 5N 80.1° elevation ||<-2> -5.0 dB attenuation ||<-2> x1.0 relative attenuation || | || 05°14′N || Guiana Space Centre || French Guiana || || 05° || 80.1° elevation ||<-2> -5.0 dB attenuation ||<-2> x1.0 relative attenuation || |
| Line 266: | Line 280: |
| ||<-2> 0N 90.0° elevation ||<-2> -4.9 dB attenuation ||<-2> x1.0 relative attenuation || | || 00° || 90.0° elevation ||<-2> -4.9 dB attenuation ||<-2> x1.0 relative attenuation || |
City Latitudes
Cities
This is by no means an exhaustive list of cities. It has most capitol cities, and extreme north/south cities for "tall" countries like the US, Canada, Russia, China, Chile, and Argentina. Numbers cribbed from Wikipedia.
Just because the server sky orbit is briefly above the horizon at a far north latitude does not mean access is practical. Orbits go from southern horizon to southern horizon, and it is elevation that matters, especially at night when the arrays that are due south may be eclipsed and in darkness.
Latitude |
City |
Country |
Latitude |
City |
Country |
Too Far North, negative elevation |
Too Far South, negative elevation |
||||
64°51′N |
Fairbanks |
United States |
|||
64°08′N |
Reykjavík |
Iceland |
62°12′S |
Villa Las Estrellas |
Chile |
61°13′N |
Anchorage |
United States |
|||
60°10′N |
Helsinki |
Finland |
|||
Very Low Elevation, very high atmospheric attenuation, huge antenna, brief availability - useless? |
|||||
59°57′N |
Oslo |
Norway |
|||
59°57′N |
Saint Petersburg |
Russia |
|||
59°26′N |
Tallinn |
Estonia |
|||
59°20′N |
Stockholm |
Sweden |
|||
58°18′N |
Juneau |
United States |
|||
56°57′N |
Riga |
Latvia |
|||
55°57′N |
Edinburgh |
United Kingdom |
|||
55°45′N |
Moscow |
Russia |
|||
55°41′N |
Copenhagen |
Denmark |
55°05′S |
Puerto Toro |
Chile |
55°01′N |
Novosibirsk |
Russia |
54°56′S |
Puerto Williams |
Chile |
55° |
5.3° elevation |
-48 dB attenuation |
x22000 relative attenuation |
||
53°53′N |
Edmondton |
Canada |
54°48′S |
Ushuaia |
Argentina |
54°41′N |
Vilnius |
Lithuania |
|||
53°21′N |
Dublin |
Ireland |
53°10′S |
Punta Arenas |
Chile |
52°31′N |
Berlin |
Germany |
|||
52°22′N |
Amsterdam |
Netherlands |
|||
52°14′N |
Warsaw |
Poland |
|||
52°08′N |
Saskatoon |
Canada |
|||
51°56′N |
Rotterdam |
Netherlands |
51°42′S |
Stanley |
Falkland Islands |
50°51′N |
Brussels |
Belgium |
51°38′S |
Río Gallegos |
Argentina |
50°49′N |
Portsmouth |
United Kingdom |
|||
50°27′N |
Regina |
Canada |
|||
50°27′N |
Kiev |
Ukraine |
|||
50°05′N |
Prague |
Czech Republic |
|||
50°04′N |
Kraków |
Poland |
|||
Marginal elevation, significant atmospheric attenuation, big antenna and sparse coverage |
|||||
50° |
10.7° elevation |
-26 dB attenuation |
x120 relative attenuation |
||
49°54′N |
Winnipeg |
Canada |
|||
49°37′N |
Luxembourg |
Luxembourg |
|||
49°15′N |
Vancouver |
Canada |
|||
48°51′N |
Paris |
France |
|||
48°47′N |
Stuttgart |
Germany |
|||
48°42′N |
Volgograd |
Russia |
|||
48°35′N |
Strasbourg |
France |
|||
48°13′N |
Vienna |
Austria |
|||
48°09′N |
Bratislava |
Slovakia |
|||
48°08′N |
Munich |
Germany |
|||
47°55′N |
Ulan Bator |
Mongolia |
|||
47°37′N |
Seattle |
United States |
|||
47°28′N |
Budapest |
Hungary |
|||
47°22′N |
Zürich |
Switzerland |
|||
47°14′N |
Rostov-on-Don |
Russia |
|||
46°57′N |
Bern |
Switzerland |
|||
46°49′N |
Quebec City |
Canada |
|||
46°28′N |
Odessa |
Ukraine |
46°25′S |
Invercargill |
New Zealand |
46°12′N |
Geneva |
Switzerland |
|||
46°03′N |
Ljubljana |
Slovenia |
|||
45°58′N |
Baikonur Cosmodrome |
Kazakhstan |
|||
45°49′N |
Zagreb |
Croatia |
|||
45°45′N |
Harbin |
People's Republic of China |
45°52′S |
Comodoro Rivadavia |
Argentina |
45°31′N |
Portland |
United States |
45°34′S |
Coihaique |
Chile |
45°30′N |
Montreal |
Canada |
|||
45°28′N |
Milan |
Italy |
|||
OK - tolerable path loss, tolerable daytime availability |
|||||
45° |
16.5° elevation |
-17 dB attenuation |
x17 relative attenuation |
||
44°59′N |
Minneapolis |
United States |
|||
44°51′N |
Halifax |
Canada |
|||
44°49′N |
Belgrade |
Serbia |
|||
44°26′N |
Bucharest |
Romania |
|||
43°56′N |
San Marino |
San Marino |
|||
43°51′N |
Sarajevo |
Bosnia and Herzegovina |
|||
43°44′N |
Monaco |
Monaco |
|||
43°42′N |
Toronto |
Canada |
|||
43°35′N |
Sochi |
Russia |
43°32′S |
Christchurch |
New Zealand |
43°18′N |
Marseille |
France |
|||
43°17′N |
Almaty |
Kazakhstan |
|||
43°08′N |
Vladivostok |
Russia |
|||
43°04′N |
Sapporo |
Japan |
|||
42°52′N |
Bishkek |
Kyrgyzstan |
42°53′S |
Hobart |
Australia |
42°42′N |
Sofia |
Bulgaria |
|||
42°30′N |
Andorra la Vella |
Andorra |
|||
42°26′N |
Podgorica |
Montenegro |
|||
42°21′N |
Boston |
United States |
|||
42°00′N |
Skopje |
Macedonia |
|||
41°54′N |
Rome |
Italy |
|||
41°53′N |
Chicago |
United States |
|||
41°49′N |
Shenyang |
People's Republic of China |
|||
41°43′N |
Tbilisi |
Georgia |
|||
41°20′N |
Tirana |
Albania |
|||
41°16′N |
Tashkent |
Uzbekistan |
|||
41°01′N |
Istanbul |
Turkey |
|||
40°58′N |
Jiuquan Launch Center |
People's Republic of China |
|||
40°51′N |
Naples |
Italy |
|||
40°40′N |
New York City |
United States |
|||
40°24′N |
Madrid |
Spain |
|||
40°24′N |
Baku |
Azerbaijan |
|||
40°11′N |
Yerevan |
Armenia |
|||
40° |
22.6° elevation |
-13 dB attenuation |
x6.0 relative attenuation |
||
39°54′N |
Beijing |
People's Republic of China |
|||
39°44′N |
Denver |
United States |
|||
39°01′N |
Pyongyang |
North Korea |
|||
38°55′N |
Dalian |
People's Republic of China |
|||
38°54′N |
Washington |
United States |
|||
38°51′N |
Taiyuan Launch Ctr |
People's Republic of China |
|||
38°43′N |
Lisbon |
Portugal |
|||
38°32′N |
Dushanbe |
Tajikistan |
|||
38°07′N |
Palermo |
Italy |
|||
37°56′N |
Ashgabat |
Turkmenistan |
|||
37°51′N |
NASA Wallops Island |
United States |
|||
37°47′N |
San Francisco |
United States |
|||
37°46′N |
Fukushima |
Japan |
|||
37°34′N |
Seoul |
South Korea |
|||
37°04′N |
Gaziantep |
Turkey |
|||
36°48′N |
Tunis |
Tunisia |
|||
36°46′N |
Algiers |
Algeria |
|||
36°20′N |
Mosul |
Iraq |
|||
36°08′N |
Gibraltar |
United Kingdom |
|||
35°54′N |
Valletta |
Malta |
34°53′S |
Montevideo |
Uruguay |
35°42′N |
Tehran |
Iran |
|||
35°41′N |
Tokyo |
Japan |
|||
35°10′N |
Nicosia |
Cyprus |
|||
35° |
29.2° elevation |
-10 dB attenuation |
x3.3 relative attenuation |
||
34°32′N |
Kabul |
Afghanistan |
34°36′S |
Buenos Aires |
Argentina |
34°05′N |
Srinagar |
India |
|||
34°03′N |
Los Angeles |
United States |
|||
34°02′N |
Rabat |
Morocco |
33°57′S |
Port Elizabeth |
South Africa |
33°53′N |
Beirut |
Lebanon |
33°52′S |
Sydney |
Australia |
33°43′N |
Islamabad |
Pakistan |
33°41′S |
Chuí |
Brazil |
33°31′N |
Damascus |
Syria |
|||
33°27′N |
Phoenix |
United States |
33°27′S |
Santiago |
Chile |
33°20′N |
Baghdad |
Iraq |
|||
32°54′N |
Tripoli |
Libya |
|||
32°47′N |
Dallas |
United States |
|||
32°43′N |
San Diego |
United States |
|||
32°32′N |
Tijuana |
Mexico |
|||
32°07′N |
Benghazi |
Libya |
|||
32°04′N |
Tel Aviv |
Israel |
|||
32°03′N |
Nanjing |
People's Republic of China |
|||
31°56′N |
Amman |
Jordan |
|||
31°47′N |
Jerusalem |
Israel |
|||
31°37′N |
Kandahar |
Afghanistan |
|||
31°36′N |
Kagoshima |
Japan |
|||
31°31′N |
Gaza |
Palestine |
|||
31°15′N |
Uchinoura Space Ctr |
Japan |
|||
31°12′N |
Alexandria |
Egypt |
|||
31°12′N |
Shanghai |
People's Republic of China |
|||
30°30′N |
Basra |
Iraq |
|||
30°24′N |
Tanegashima Space Ctr |
Japan |
|||
Good - low path loss, small antennas, good daytime and nighttime availability |
|||||
30° |
36.3° elevation |
-8.3 dB attenuation |
x2.2 relative attenuation |
||
30°00′N |
Cairo |
Egypt |
|||
29°58′N |
New Orleans |
United States |
|||
29°46′N |
Houston |
United States |
|||
29°34′N |
Chongqing |
People's Republic of China |
|||
29°22′N |
Kuwait City |
Kuwait |
29°19′S |
Maseru |
Lesotho |
28°37′N |
New Delhi |
India |
|||
28°31′N |
Kennedy Space Center |
United States |
|||
28°28′N |
Santa Cruz |
Tenerife |
|||
28°09′N |
Las Palmas |
Canary Islands |
|||
27°42′N |
Kathmandu |
Nepal |
27°28′S |
Brisbane |
Australia |
27°28′N |
Thimphu |
Bhutan |
26°29′S |
Manzini |
Swaziland |
26°13′N |
Manama |
Bahrain |
26°12′S |
Johannesburg |
South Africa |
25°47′N |
Miami |
United States |
25°58′S |
Maputo |
Mozambique |
25°41′N |
Luxor |
Egypt |
|||
25°17′N |
Doha |
Qatar |
25°17′S |
Asunción |
Paraguay |
25°15′N |
Dubai |
United Arab Emirates |
|||
25°04′N |
Nassau |
Bahamas |
25°04′S |
Adamstown |
Pitcairn |
25°02′N |
Taibei |
Republic of China (Taiwan) |
|||
25° |
44.0° elevation |
-7.1 dB attenuation |
x1.6 relative attenuation |
||
24°52′N |
Karachi |
Pakistan |
|||
24°38′N |
Riyadh |
Saudi Arabia |
24°39′S |
Gaborone |
Botswana |
24°34′N |
Key West |
United States |
|||
24°28′N |
Abu Dhabi |
United Arab Emirates |
|||
23°42′N |
Dhaka |
Bangladesh |
22°55′S |
Rio de Janeiro |
Brazil |
23°37′N |
Muscat |
Oman |
22°34′S |
Windhoek |
Namibia |
23°08′N |
Havana |
Cuba |
22°17′S |
Nouméa |
New Caledonia |
23°08′N |
Guangzhou |
People's Republic of China |
|||
22°34′N |
Kolkata (Calcutta) |
India |
|||
22°17′N |
Hong Kong |
People's Republic of China |
|||
21°28′N |
Cockburn Town |
Turks and Caicos |
|||
21°25′N |
Mecca |
Saudi Arabia |
21°08′S |
Nukuʻalofa |
Tonga |
21°19′N |
Honolulu |
United States |
20°53′S |
Saint-Denis |
Réunion Isl, Indian Ocean |
21°02′N |
Hanoi |
Vietnam |
20°10′S |
Port Louis |
Mauritius |
20° |
52.2° elevation |
-6.2 dB attenuation |
x1.4 relative attenuation |
||
19°42′N |
Hilo |
United States |
|||
19°34′N |
Wenchang Launch Ctr. |
People's Republic of China |
|||
19°26′N |
Mexico City |
Mexico |
|||
18°59′N |
Mumbai |
India |
18°56′S |
Antananarivo |
Madagascar |
18°48′N |
Chiang Mai |
Thailand |
|||
18°32′N |
Port-au-Prince |
Haiti |
|||
18°28′N |
Santo Domingo |
Dominican Republic |
|||
18°27′N |
San Juan |
United States |
|||
18°21′N |
Charlotte Amalie |
Virgin Islands |
|||
18°06′N |
Nouakchott |
Mauritania |
18°08′S |
Suva |
Fiji |
17°59′N |
Kingston |
Jamaica |
17°52′S |
Harare |
Zimbabwe |
17°58′N |
Vientiane |
Laos |
17°45′S |
Port Vila |
Vanuatu |
17°25′N |
Belmopan |
Belize |
17°32′S |
Papeete |
Tahiti |
17°18′N |
Basseterre |
Saint Kitts and Nevis |
|||
17°07′N |
St. John's |
Antigua and Barbuda |
|||
16°52′N |
Acapulco |
Mexico |
|||
16°48′N |
Yangon |
Burma |
16°30′S |
La Paz |
Bolivia |
16°00′N |
Basse-Terre |
Saint Kitts and Nevis |
15°55′S |
Jamestown |
Saint Helena |
15°38′N |
Khartoum |
Sudan |
15°48′S |
Brasília |
Brazil |
15°21′N |
Sana'a |
Yemen |
15°25′S |
Lusaka |
Zambia |
15°20′N |
Asmara |
Eritrea |
|||
15°18′N |
Roseau |
Dominica |
|||
15°11′N |
Saipan |
Saipan |
|||
15° |
61.0° elevation |
-5.6 dB attenuation |
x1.2 relative attenuation |
||
14°55′N |
Praia |
Cape Verde |
|||
14°42′N |
Dakar |
Senegal |
|||
14°37′N |
Guatemala City |
Guatemala |
|||
14°36′N |
Fort-de-France |
Martinique |
|||
14°35′N |
Manila |
Philippines |
|||
14°06′N |
Tegucigalpa |
Honduras |
14°17′S |
Pago Pago |
Pago Pago |
14°01′N |
Castries |
Saint Lucia |
13°59′S |
Lilongwe |
Malawi |
13°45′N |
Bangkok |
Thailand |
13°50′S |
Apia |
Samoa |
13°43′N |
Satish Dhawan Launch |
India |
|||
13°41′N |
San Salvador |
El Salvador |
|||
13°29′N |
Hagåtña |
Guam |
|||
13°27′N |
Banjul |
Gambia |
|||
13°09′N |
Kingstown |
St Vincent Grenadines |
|||
13°06′N |
Bridgetown |
Barbados |
|||
13°05′N |
Chennai (Madras) |
India |
|||
12°39′N |
Bamako |
Mali |
|||
12°31′N |
Oranjestad |
Aruba |
|||
12°21′N |
Ouagadougou |
Burkina Faso |
12°27′S |
Darwin |
Australia |
12°08′N |
Managua |
Nicaragua |
|||
12°07′N |
Willemstad |
Curaçao |
|||
12°07′N |
N'Djamena |
Chad |
|||
12°03′N |
St. George's |
Grenada |
12°03′S |
Lima |
Peru |
11°51′N |
Bissau |
Guinea-Bissau |
11°45′S |
Moroni |
Comoros |
11°35′N |
Djibouti |
Djibouti |
|||
11°33′N |
Phnom Penh |
Cambodia |
|||
10°46′N |
Ho Chi Minh City |
Vietnam |
|||
10°40′N |
Port of Spain |
Trinidad and Tobago |
|||
10°30′N |
Caracas |
Venezuela |
|||
10° |
70.4° elevation |
-5.2 dB attenuation |
x1.1 relative attenuation |
||
09°56′N |
San José |
Costa Rica |
|||
09°31′N |
Conakry |
Guinea |
09°31′S |
Port Moresby |
Papua New Guinea |
09°02′N |
Addis Ababa |
Ethiopia |
09°28′S |
Honiara |
Solomon Islands |
08°59′N |
Panama City |
Panama |
08°50′S |
Luanda |
Angola |
08°29′N |
Trivandrum |
India |
08°33′S |
Dili |
Timor-Leste |
08°29′N |
Freetown |
Sierra Leone |
08°31′S |
Funafuti |
Tuvalu |
07°22′N |
Koror |
Palau |
|||
07°04′N |
Majuro |
Marshall Islands |
|||
07°04′N |
Davao City |
Philippines |
|||
07°01′N |
Hat Yai |
Thailand |
|||
06°56′N |
Colombo |
Sri Lanka |
|||
06°55′N |
Palikir |
Micronesia |
|||
06°49′N |
Yamoussoukro |
Ivory Coast |
|||
06°48′N |
Georgetown |
Guyana |
|||
06°30′N |
Porto-Novo |
Benin |
|||
06°27′N |
Lagos |
Nigeria |
|||
06°19′N |
Monrovia |
Liberia |
06°12′S |
Jakarta |
Indonesia |
06°08′N |
Lomé |
Togo |
06°10′S |
Dodoma |
Tanzania |
05°52′N |
Paramaribo |
Suriname |
|||
05°33′N |
Accra |
Ghana |
|||
05°14′N |
Guiana Space Centre |
French Guiana |
|||
05° |
80.1° elevation |
-5.0 dB attenuation |
x1.0 relative attenuation |
||
04°55′N |
Cayenne |
French Guiana |
|||
04°53′N |
Bandar Seri Begawan |
Brunei |
|||
04°51′N |
Juba |
South Sudan |
|||
04°36′N |
Bogotá |
Colombia |
04°37′S |
Victoria |
Seychelles |
04°22′N |
Bangui |
Central African Republic |
04°20′S |
Kinshasa |
Dem Rep Congo |
04°11′N |
Malé |
Maldives |
04°16′S |
Brazzaville |
Republic Congo |
03°52′N |
Yaoundé |
Cameroon |
|||
03°45′N |
Malabo |
Equatorial Guinea |
|||
03°09′N |
Kuala Lumpur |
Malaysia |
03°23′S |
Bujumbura |
Burundi |
02°02′N |
Mogadishu |
Somalia |
|||
Too close to equator? Possible GEO, O3B uplink interference |
|||||
01°26′N |
South Tarawa |
Kiribati |
01°57′S |
Kigali |
Rwanda |
01°17′N |
Singapore |
Singapore |
01°17′S |
Nairobi |
Kenya |
00°23′N |
Libreville |
Gabon |
00°33′S |
Yaren District |
Nauru |
00°20′N |
São Tomé |
São Tomé and Príncipe |
|||
00°19′N |
Kampala |
Uganda |
00°15′S |
Quito |
Ecuador |
00° |
90.0° elevation |
-4.9 dB attenuation |
x1.0 relative attenuation |
||