Kosmos 705

{{Infobox spaceflight

| name = Kosmos 705

| mission_type = ABM radar target

| operator =

| COSPAR_ID = 1975-006A

| SATCAT =

| mission_duration =

| spacecraft_type = DS-P1-Yu

| manufacturer = Yuzhnoye

| launch_mass = {{convert|400|kg}}

| launch_date = {{start-date|28 January 1975, 12:05:01|timezone=yes}} UTC

| launch_rocket = Kosmos-2I 63SM

| launch_site = Plesetsk 133/1

| decay_date = {{end-date|18 November 1975}}

| orbit_epoch =

| orbit_reference = Geocentric

| orbit_regime = Low Earth

| orbit_periapsis = {{convert|268|km}}

| orbit_apoapsis = {{convert|484|km}}

| orbit_inclination = 70.9 degrees

| orbit_period = 92.1 minutes

| apsis = gee

}}

Kosmos 705 ({{langx|ru|Космос 705}} meaning Cosmos 705), also known as DS-P1-Yu No.75, was a Soviet satellite which was launched in 1975 as part of the Dnepropetrovsk Sputnik programme. It was a {{convert|400|kg|adj=on}} spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.{{cite web|url=http://www.astronautix.com/craft/dsp1yu.htm|title=DS-P1-Yu|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|access-date=2 September 2009|url-status=dead|archive-url=https://web.archive.org/web/20120602211924/http://www.astronautix.com/craft/dsp1yu.htm|archive-date=2 June 2012|df=dmy-all}}

A Kosmos-2I 63SM carrier rocket was used to launch Kosmos 705 from Site 133/1 of the Plesetsk Cosmodrome.{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|access-date=2 September 2009}} The launch occurred at 12:05:01 UTC on 28 January 1975, and resulted in the satellite successfully reaching low Earth orbit.{{cite web|url=http://www.astronautix.com/lvs/kosmos2.htm|title=Kosmos 2|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|access-date=2 September 2009|url-status=dead|archive-url=https://web.archive.org/web/20120618125001/http://www.astronautix.com/lvs/kosmos2.htm|archive-date=18 June 2012|df=dmy-all}} Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1975-006A.{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1975-006A|title=Cosmos 705|publisher=US National Space Science Data Center|work=NSSDC Master Catalog|access-date=2 September 2009}} The North American Aerospace Defense Command assigned it the catalogue number 07623.

Kosmos 705 was the seventy-fifth of seventy nine DS-P1-Yu satellites to be launched, and the sixty-eighth of seventy two to successfully reach orbit.{{cite web|url=http://space.skyrocket.de/doc_sdat/ds-p1-yu.htm|title=DS-P1-Yu (11F618)|first=Gunter|last=Krebs|publisher=Gunter's Space Page|access-date=2 September 2009}} It was operated in an orbit with a perigee of {{convert|268|km}}, an apogee of {{convert|484|km}}, 70.9 degrees of inclination, and an orbital period of 92.1 minutes. It remained in orbit until it decayed and reentered the atmosphere on 18 November 1975.{{cite web|url=http://www.planet4589.org/space/log/satcat.txt|title=Satellite Catalog|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|access-date=2 September 2009}}