Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
484976 (2009 UN3)
Classification: Apollo [NEO, PHA]          SPK-ID: 2484976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 79 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5763112804371529 1.9112e-08  
a 2.325783762450716 1.1057e-08 au
q .9854083442928049 4.5644e-08 au
i 37.45323493769774 1.3104e-05 deg
node 141.9699226614099 1.2974e-06 deg
peri 338.7947096299346 1.5825e-05 deg
M 80.45428006824085 9.7534e-06 deg
tp 2459106.966326662003
(2020-Sep-14.46632666)
3.3117e-05 TDB
period 1295.5447778946
3.55
9.239e-06
2.53e-08
d
yr
n .2778753819571091 1.9816e-09 deg/d
Q 3.666159180608627 1.743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   # delay obs. used      4  
   # Doppler obs. used      3  
   data-arc span      5159 days (14.12 yr)  
   first obs. used      2003-03-07  
   last obs. used      2017-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .33345  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 17:12:50  

Additional Information
 Earth MOID = .0235674 au 
 Jupiter MOID = 1.57499 au 
 T_jup = 3.105 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.5   n/a MPO437843  
rotation period rot_per 4.123 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Hicks, M.; Barajas, T.; Shitanishi, J. (2010) Astronomer's Telegram 2449. http://www.astronomerstelegram.org.]
[Polishook, D. (2012) Minor Planet Bull. 39, 187-192.]

484976 (2009 UN3)          Discovered 2009-Oct-19 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2017-03-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-21 10:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin