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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
(2012 UR158)
Classification: Apollo [NEO, PHA]          SPK-ID: 3614980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8550556705879918 4.4642e-08  
a 2.239092594501897 7.3058e-08 au
q .3245437746014711 9.3452e-08 au
i 3.217978860257237 7.3259e-06 deg
node 287.6585077370777 0.00016827 deg
peri 238.1654874505396 0.00016744 deg
M 322.3311433030498 3.2871e-05 deg
tp 2458728.552023433688
(2019-Sep-02.05202343)
0.00011799 TDB
period 1223.788892957297
3.35
5.9895e-05
1.64e-07
d
yr
n .2941683831841754 1.4397e-08 deg/d
Q 4.153641414402323 1.3553e-07 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      1361 days (3.73 yr)  
   first obs. used      2012-10-22  
   last obs. used      2016-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43346  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:48:19  

Additional Information
 Earth MOID = .0033902 au 
 Jupiter MOID = .88418 au 
 T_jup = 3.003 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.7   n/a MPO386856  
diameter diameter 0.629 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.023   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

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