(7888) 1993 UC: Difference between revisions
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{{Use dmy dates|date=March 2020}}
{{Infobox planet
| minorplanet=yes
| background=#FFC2E0
| name=(7888) 1993 UC
▲| discovery_ref = <ref name="jpldata"/>
| discoverer=[[Robert H. McNaught]]
| discovered=
| alt_names=
| mp_category
| [[List of Apollo asteroids|Apollo]] | [[Near-Earth object|NEO]]<ref name="jpldata"/> }}▼
|
| epoch=13 January 2016 ([[Julian day|JD]] 2457400.5)
| observation_arc=9456 days (25.89 yr)
| uncertainty=0
| 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)
| asc_node=165.95°▼
▲| period=3.80
| arg_peri=323.00°▼
|
| 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}}
▲|
| escape_velocity=~{{convert|1.3|m/s|mph|0|abbr=on}}
| spectral_type=U
| magnitude
| abs_magnitude=15.
}} '''(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
On
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"/>
== References ==▼
{{reflist|refs=▼
▲==References==
▲{{reflist
<ref name="jpldata">{{cite web
|
|title=JPL Close-Approach Data: 7888 (1993 UC)
|url=
|accessdate=
<ref name="NEODyS2013">{{cite web
|title=1993 UC Ephemerides for 20 March 2013
|publisher=NEODyS (Near Earth Objects
|url=
|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}}
{{Small Solar System bodies}}
{{2013 in space}}
{{Authority control}}
{{DEFAULTSORT:1993 UC}}
[[Category:
[[Category:Discoveries by Robert H. McNaught]]
[[Category:
[[Category:Unclassifiable asteroids (SMASS)|007888]]
[[Category:Near-Earth objects in 2013|20130315]]
[[Category:Astronomical objects discovered in 1993|19931020]]
|
Latest revision as of 22:51, 19 December 2023
Discovery[1] | |
---|---|
Discovered by | Robert H. McNaught |
Discovery date | 20 October 1993 |
Designations | |
Orbital characteristics[1] | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 0 | |
Observation arc | 9456 days (25.89 yr) |
Aphelion | 4.0540 AU (606.47 Gm) (Q) |
Perihelion | 0.81827 AU (122.411 Gm) (q) |
2.4361 AU (364.44 Gm) (a) | |
Eccentricity | 0.66411 (e) |
3.80 yr (1388.8 d) | |
274.28° | |
0° 15m 33.156s / day | |
Inclination | 26.082° |
165.92° | |
323.07° | |
Earth MOID | 0.0889665 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]
- ^ 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)
- ^ (E.A.R.N.) physical data for (7888) 1993UC
- ^ "1993 UC Ephemerides for 20 March 2013". NEODyS (Near Earth Objects – Dynamic Site). Retrieved 19 March 2013.
- ^ NASA "NEO Earth Close Approach Tables", Retrieved on 21 December 2012.
- ^ NASA/JPL "NEO Program FAQ", Retrieved on 21 December 2012.
- ^ 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]
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- (7888) 1993 UC at NeoDyS-2, Near Earth Objects—Dynamic Site
- (7888) 1993 UC at ESA–space situational awareness
- (7888) 1993 UC at the JPL Small-Body Database