(7888) 1993 UC: Difference between revisions

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{{Use dmy dates|date=March 2020}}
{{Infobox planet
{{Infobox planet
| minorplanet=yes
| discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
| background=#FFC2E0
| name=(7888) 1993 UC
| name=(7888) 1993 UC
⚫
| discovery_ref=<ref name="jpldata"/>
| discovery = yes
⚫
| discovery_ref = <ref name="jpldata"/>
| discoverer=[[Robert H. McNaught]]
| discoverer=[[Robert H. McNaught]]
| discovered=October 28, 1989
| discovered=20 October 1993
| alt_names=''none''
| alt_names=
| mp_category = [[List of Apollo asteroids|Apollo]] [[Near-Earth object|NEO]]<ref name="jpldata"/>
| mp_category={{Hlist
| [[List of Apollo asteroids|Apollo]]
| [[Near-Earth object|NEO]]<ref name="jpldata"/>
⚫
}}
| orbit_ref = <ref name="jpldata"/>
| epoch = 2013-Apr-18<br>([[Uncertainty Parameter U|Uncertainty]]=0)<ref name="jpldata"/>
| orbit_ref=<ref name="jpldata"/>
| epoch=13 January 2016 ([[Julian day|JD]]&nbsp;2457400.5)
| aphelion=4.0531 [[Astronomical unit|AU]]
| observation_arc=9456 days (25.89&nbsp;yr)
| perihelion=0.81793 AU
| uncertainty=0
| semimajor=2.4355 AU AU
| aphelion={{Convert|4.0540|AU|Gm|abbr=on|lk=on}} (Q)
⚫
| eccentricity=0.66416
| perihelion={{Convert|0.81827|AU|Gm|abbr=on}} (q)
⚫
| period=3.80 [[Julian year (astronomy)|yr]]<br>(1,388 d)
| semimajor={{Convert|2.4361|AU|Gm|abbr=on}} (a)
| inclination=26.071°
⚫
| eccentricity=0.66411 (e)
⚫
| asc_node=165.95°
⚫
| period=3.80&nbsp;[[Julian year (astronomy)|yr]] (1388.8&nbsp;[[Julian year (astronomy)|d]])
⚫
| arg_peri=323.00°
| mean_anomaly=15.158° (M)
| inclination=26.082°
⚫
| asc_node=165.92°
| physical_characteristics = yes
⚫
| arg_peri=323.07°
⚫
| dimensions = ~{{convert|2.7|km|abbr=on}}<ref>[http://newton.dm.unipi.it/neodys/index.php?pc=1.1.9&n=1993UC (E.A.R.N.) physical data for (7888) 1993UC]</ref>
| mean_motion={{Deg2DMS|0.25921|sup=ms}} / day
⚫
| rotation=2.340 h<ref name="jpldata"/>
| mean_anomaly=274.28[[Degree (angle)|°]]
| moid={{Convert|0.0889665|AU|Gm|abbr=on}}
⚫
| mean_diameter=~{{convert|2.7|km|abbr=on}}<ref>[https://newton.spacedys.com/neodys/index.php?pc=1.1.9&n=1993UC (E.A.R.N.) physical data for (7888) 1993UC]</ref>
| escape_velocity=~{{convert|1.3|m/s|mph|0|abbr=on}}
⚫
| rotation={{Convert|2.340|h|d|abbr=on|lk=on}}<ref name="jpldata"/>
| spectral_type=U
| spectral_type=U
| magnitude = 14.1 (2013 peak)<ref name="NEODyS2013" />
| magnitude=14.1 (2013 peak)<ref name="NEODyS2013" />
| abs_magnitude=15.3<ref name="jpldata"/>}}
| abs_magnitude=15.1<ref name="jpldata"/>
}}


'''(7888) 1993 UC''' is a [[near-Earth object|near-Earth]] [[minor planet]] in the [[list of Apollo asteroids|Apollo group]].<ref name="jpldata"/> It was discovered by [[Robert H. McNaught]] at the [[Siding Spring Observatory]] in [[Coonabarabran, New South Wales]], Australia, on October 20, 1993.<ref name="jpldata"/> The asteroid has an observation arc of 23 years and has a well determined orbit.<ref name="jpldata"/> Its estimated size is 2.3 to 5.2&nbsp;km.<ref>NASA [http://neo.jpl.nasa.gov/neo/close.html "NEO Earth Close Approach Tables"], Retrieved on 21 December 2012.</ref>
'''(7888) 1993 UC''' is a [[near-Earth object|near-Earth]] [[minor planet]] in the [[list of Apollo asteroids|Apollo group]].<ref name="jpldata"/> It was discovered by [[Robert H. McNaught]] at the [[Siding Spring Observatory]] in [[Coonabarabran, New South Wales]], Australia, on 20 October 1993.<ref name="jpldata"/> The asteroid has an observation arc of 23 years and has a well determined orbit.<ref name="jpldata"/> Its estimated size is 2.3 to 5.2&nbsp;km.<ref>NASA [https://web.archive.org/web/20021009215033/http://neo.jpl.nasa.gov/neo/close.html "NEO Earth Close Approach Tables"], Retrieved on 21 December 2012.</ref>


On March 20, 2013, the asteroid passed 49 [[lunar distance]]s or {{convert|0.12598|AU|km mi|abbr=on|lk=off}} from Earth at a relative velocity of {{convert|21.8|km/s|mph|abbr=on}}.<ref name="jpldata"/> The approach posed no threat to Earth. (7888) 1993 UC is not classified as a [[potentially hazardous asteroid]] (PHA) because its Earth MOID ([[Minimum Orbit Intersection Distance]]) is only 0.089 AU,<ref name="jpldata"/> and only objects with an Earth MOID less than 0.05 AU are considered PHAs.<ref>NASA/JPL [http://neo.jpl.nasa.gov/faq/#pha "NEO Program FAQ"], Retrieved on 21 December 2012.</ref>
On 20 March 2013, the asteroid passed 49 [[lunar distance (astronomy)|lunar distances]] or {{convert|0.12598|AU|km mi|abbr=on|lk=off}} from Earth at a relative velocity of {{convert|21.8|km/s|mph|abbr=on}}.<ref name="jpldata"/> The approach posed no threat to Earth. (7888) 1993 UC is not classified as a [[potentially hazardous asteroid]] (PHA) because its Earth MOID ([[Minimum Orbit Intersection Distance]]) is only 0.089&nbsp;AU,<ref name="jpldata"/> and only objects with an Earth MOID less than 0.05&nbsp;AU are considered PHAs.<ref>NASA/JPL [https://web.archive.org/web/20040628110338/http://neo.jpl.nasa.gov/faq/#pha "NEO Program FAQ"], Retrieved on 21 December 2012.</ref>


On April 29, 2146, the asteroid will pass {{convert|0.0346|AU|km mi|abbr=on|lk=off}} from asteroid [[4 Vesta]].<ref name="jpldata"/>
It was discovered to be a [[binary asteroid]] by [[Arecibo Observatory]] in March 2013.<ref name="Binary"/>


On 29 April 2146, the asteroid will pass {{convert|0.0346|AU|km mi|abbr=on|lk=off}} from asteroid [[4 Vesta]].<ref name="jpldata"/>
==See also==

*[[List of minor planets: 7001–8000]]
⚫
== References ==
⚫
{{reflist|refs=


⚫
==References==
⚫
{{reflist
| refs =
<ref name="jpldata">{{cite web
<ref name="jpldata">{{cite web
|date=2012-11-25 last obs (arc=23 years)
|quote=2012-11-25 last obs (arc=23 years)
|title=JPL Close-Approach Data: 7888 (1993 UC)
|title=JPL Close-Approach Data: 7888 (1993 UC)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1993UC;cad=1#cad
|url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1993UC;cad=1#cad
|accessdate=2013-03-19}}</ref>
|accessdate=11 April 2016}}</ref>


<ref name="NEODyS2013">{{cite web
<ref name="NEODyS2013">{{cite web
|title=1993 UC Ephemerides for 20 March 2013
|title=1993 UC Ephemerides for 20 March 2013
|publisher=NEODyS (Near Earth Objects – Dynamic Site)
|publisher=NEODyS (Near Earth Objects{{Snd}} Dynamic Site)
|url=http://newton.dm.unipi.it/neodys/index.php?pc=1.1.3.1&n=7888&oc=500&y0=2013&m0=3&d0=16&h0=0&mi0=0&y1=2013&m1=4&d1=25&h1=0&mi1=0&ti=1.0&tiu=days
|url=https://newton.spacedys.com/neodys/index.php?pc=1.1.3.1&n=7888&oc=500&y0=2013&m0=3&d0=16&h0=0&mi0=0&y1=2013&m1=4&d1=25&h1=0&mi1=0&ti=1.0&tiu=days
|accessdate=2013-03-19}}</ref>
|accessdate=2013-03-19}}</ref>


<ref name="Binary">{{cite web
⚫
}}
|date=2013-11-18
|title=Binary and Ternary near-Earth Asteroids detected by radar
|publisher=NASA/JPL Asteroid Radar Research
|author=Dr. Lance A. M. Benner
|url=http://echo.jpl.nasa.gov/~lance/binary.neas.html
|archive-url=https://web.archive.org/web/20040608071121/http://echo.jpl.nasa.gov/~lance/binary.neas.html
|url-status=dead
|archive-date=2004-06-08
|accessdate=2014-03-01}}</ref>

}} <!-- end of reflist -->


== External links ==
⚫
{{MinorPlanets Navigator|7887 Bratfest|(7889) 1994 LX}}
* [http://www.johnstonsarchive.net/astro/asteroidmoons.html Asteroids with Satellites], Robert Johnston, johnstonsarchive.net
* {{NeoDys|7888}}
* {{ESA-SSA|7888|1993UC}}
* {{JPL small body|id=7888}}

⚫
{{Minor planets navigator |7887 Bratfest |number=7888 |(7889) 1994 LX}}
{{Small Solar System bodies}}
{{Small Solar System bodies}}
{{2013 in space}}
{{Authority control}}


{{DEFAULTSORT:1993 UC}}
{{DEFAULTSORT:1993 UC}}
[[Category:Astronomical objects discovered in 1993]]
[[Category:Apollo asteroids|007888]]
[[Category:Discoveries by Robert H. McNaught]]
[[Category:Discoveries by Robert H. McNaught]]
[[Category:Apollo asteroids]]
[[Category:Binary asteroids|007888]]
[[Category:Unclassifiable asteroids (SMASS)|007888]]

[[Category:Near-Earth objects in 2013|20130315]]

[[Category:Astronomical objects discovered in 1993|19931020]]
{{NE-asteroid-stub}}

[[hy:(7888) 1993 UC]]

Latest revision as of 22:51, 19 December 2023

(7888) 1993 UC
Discovery[1]
Discovered byRobert H. McNaught
Discovery date20 October 1993
Designations
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc9456 days (25.89 yr)
Aphelion4.0540 AU (606.47 Gm) (Q)
Perihelion0.81827 AU (122.411 Gm) (q)
2.4361 AU (364.44 Gm) (a)
Eccentricity0.66411 (e)
3.80 yr (1388.8 d)
274.28°
0° 15m 33.156s / day
Inclination26.082°
165.92°
323.07°
Earth MOID0.0889665 AU (13.30920 Gm)
Physical characteristics
Mean diameter
~2.7 km (1.7 mi)[2]
Equatorial escape velocity
~1.3 m/s (3 mph)
2.340 h (0.0975 d)[1]
U
14.1 (2013 peak)[3]
15.1[1]

(7888) 1993 UC is a near-Earth minor planet in the Apollo group.[1] It was discovered by Robert H. McNaught at the Siding Spring Observatory in Coonabarabran, New South Wales, Australia, on 20 October 1993.[1] The asteroid has an observation arc of 23 years and has a well determined orbit.[1] Its estimated size is 2.3 to 5.2 km.[4]

On 20 March 2013, the asteroid passed 49 lunar distances or 0.12598 AU (18,846,000 km; 11,711,000 mi) from Earth at a relative velocity of 21.8 km/s (49,000 mph).[1] The approach posed no threat to Earth. (7888) 1993 UC is not classified as a potentially hazardous asteroid (PHA) because its Earth MOID (Minimum Orbit Intersection Distance) is only 0.089 AU,[1] and only objects with an Earth MOID less than 0.05 AU are considered PHAs.[5]

It was discovered to be a binary asteroid by Arecibo Observatory in March 2013.[6]

On 29 April 2146, the asteroid will pass 0.0346 AU (5,180,000 km; 3,220,000 mi) from asteroid 4 Vesta.[1]

References[edit]

  1. ^ a b c d e f g h i j k "JPL Close-Approach Data: 7888 (1993 UC)". Retrieved 11 April 2016. 2012-11-25 last obs (arc=23 years)
  2. ^ (E.A.R.N.) physical data for (7888) 1993UC
  3. ^ "1993 UC Ephemerides for 20 March 2013". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 19 March 2013.
  4. ^ NASA "NEO Earth Close Approach Tables", Retrieved on 21 December 2012.
  5. ^ NASA/JPL "NEO Program FAQ", Retrieved on 21 December 2012.
  6. ^ Dr. Lance A. M. Benner (18 November 2013). "Binary and Ternary near-Earth Asteroids detected by radar". NASA/JPL Asteroid Radar Research. Archived from the original on 8 June 2004. Retrieved 1 March 2014.

External links[edit]

Retrieved from "https://en.wikipedia.org/w/index.php?title=(7888)_1993_UC&oldid=1190799026"