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
JPL Small-Body Database Browser
Search: [ help ]  
52768 (1998 OR2)
Classification: Amor [NEO, PHA]          SPK-ID: 2052768
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 298 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5730839067779959 3.0536e-09  
a 2.384435232724488 3.3208e-09 au
q 1.017953774095639 7.0504e-09 au
i 5.865877490685264 1.9333e-06 deg
node 27.01552491446619 4.8315e-06 deg
peri 174.5661500173678 6.0533e-06 deg
M 12.1013870137416 7.1745e-07 deg
tp 2458955.292616477630
(2020-Apr-15.79261648)
2.677e-06 TDB
period 1344.858903328408
3.68
2.8095e-06
7.692e-09
d
yr
n .2676860740625143 5.5921e-10 deg/d
Q 3.750916691353337 5.2239e-09 au
  Orbit Determination Parameters
   # obs. used (total)      5186  
   # delay obs. used      3  
   # Doppler obs. used      0  
   data-arc span      12067 days (33.04 yr)  
   first obs. used      1987-06-30  
   last obs. used      2020-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .21086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-02 06:26:56  

Additional Information
 Earth MOID = .0154377 au 
 Jupiter MOID = 1.20745 au 
 T_jup = 3.286 
[ 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 15.8   n/a MPO422042  
diameter diameter 1.75 km 0.3 Arecibo initial assessment April 16-22, 2020 (S. Marshall, P. Taylor)  
rotation period rot_per 4.1120 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bull. 41, 286-300.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]

52768 (1998 OR2)          Discovered 1998-Jul-24 by NEAT at Haleakala
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ 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 2020-Aug-04 15:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin