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 ]  
65765 (1994 UR1)
Classification: Main-belt Asteroid          SPK-ID: 2065765
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1886851014576401 4.7217e-08  
a 2.443462997419298 1.2377e-08 au
q 1.982417933843248 1.128e-07 au
i 3.386676834537714 4.475e-06 deg
node 51.74356813122649 6.332e-05 deg
peri 299.4028172538463 6.4132e-05 deg
M 284.0715703475261 1.1817e-05 deg
tp 2459294.744933782465
(2021-Mar-21.24493378)
4.6738e-05 TDB
period 1395.105583593957
3.82
1.06e-05
2.902e-08
d
yr
n .2580449854358675 1.9607e-09 deg/d
Q 2.904508060995347 1.4712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1332  
   data-arc span      10437 days (28.57 yr)  
   first obs. used      1990-09-14  
   last obs. used      2019-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51806  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:15:15  

Additional Information
 Earth MOID = .979483 au 
 Jupiter MOID = 2.5289 au 
 T_jup = 3.473 
[ 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 15.0   n/a MPO381716  
rotation period rot_per 8.451 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

65765 (1994 UR1)          Discovered 1994-Oct-25 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 UR1 = 1990 RV14 = 1990 SR21 = 2002 XH71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-07 20:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin