Kosmos 283

{{Infobox spaceflight

| name = Kosmos 283

| mission_type = ABM radar target

| operator =

| COSPAR_ID = 1969-047A

| SATCAT =

| mission_duration =

| spacecraft_type = DS-P1-Yu

| manufacturer = Yuzhnoye

| launch_mass = {{convert|250|kg}}

| launch_date = {{start-date|27 May 1969, 12:59:59|timezone=yes}} UTC

| launch_rocket = Kosmos-2I 63SM

| launch_site = Plesetsk 133/1

| decay_date = {{end-date|10 December 1969}}

| orbit_epoch =

| orbit_reference = Geocentric

| orbit_regime = Low Earth

| orbit_periapsis = {{convert|196|km}}

| orbit_apoapsis = {{convert|1364|km}}

| orbit_inclination = 81.9 degrees

| orbit_period = 100.5 minutes

| apsis = gee

}}

Kosmos 283 ({{langx|ru|Космос 283}} meaning Cosmos 283), known before launch as DS-P1-Yu No.19, was a Soviet satellite which was used as a radar calibration target for tests of anti-ballistic missiles. It was a {{convert|250|kg|adj=on}} spacecraft, which was built by the Yuzhnoye Design Bureau, and launched in 1969 as part of the Dnepropetrovsk Sputnik programme.{{cite web|url=http://www.astronautix.com/craft/dsp1yu.htm|title=DS-P1-Yu|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|access-date=13 August 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}}

Kosmos 283 was launched from Site 133/1 at the Plesetsk Cosmodrome,{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|author-link=Jonathan McDowell|publisher=Jonathan's Space Page|access-date=13 August 2009}} atop a Kosmos-2I 63SM carrier rocket. The launch occurred on 27 May 1969 at 12:59:59 UTC, and resulted in Kosmos 283's successful deployment into 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=13 August 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, it was assigned its Kosmos designation, and received the International Designator 1969-047A.

Kosmos 283 was operated in an orbit with a perigee of {{convert|196|km}}, an apogee of {{convert|1364|km}}, 81.9 degrees of inclination, and an orbital period of 100.5 minutes. It remained in orbit until it decayed and reentered the atmosphere on 10 December 1969.{{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=13 August 2009}} It was the twenty-first of seventy nine DS-P1-Yu satellites to be launched, and the twentieth 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=13 August 2009}}

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