24170
Comment:
|
24709
|
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 64: | Line 68: |
||<-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 96: | Line 100: |
||<-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 118: | Line 122: |
||<-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 144: | Line 148: |
||<-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 162: | Line 166: |
||<-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 181: |
||<-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 200: | Line 204: |
||<-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 228: | Line 232: |
||<-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 253: |
||<-2> 5N 80.1° elevation ||<-2> -5.0 dB attenuation ||<-2> x1.0 relative attenuation || | || 05° || 80.1° elevation ||<-2> -5.0 dB attenuation ||<-2> x1.0 relative attenuation || |
Line 266: | Line 270: |
||<-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°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°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°43′N |
Lisbon |
Portugal |
|||
38°32′N |
Dushanbe |
Tajikistan |
|||
38°07′N |
Palermo |
Italy |
|||
37°56′N |
Ashgabat |
Turkmenistan |
|||
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°12′N |
Alexandria |
Egypt |
|||
31°12′N |
Shanghai |
People's Republic of China |
|||
30°30′N |
Basra |
Iraq |
|||
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°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°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°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° |
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 |
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Too close to equator? Possible GEO, O3B uplink interference |
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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 |
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00°19′N |
Kampala |
Uganda |
00°15′S |
Quito |
Ecuador |
00° |
90.0° elevation |
-4.9 dB attenuation |
x1.0 relative attenuation |