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 ]  
4969 Lawrence (1986 TU)
Classification: Main-belt Asteroid          SPK-ID: 2004969
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3625378442234531 3.1395e-08  
a 2.756258521853221 1.2536e-08 au
q 1.757010499218033 8.6312e-08 au
i 31.44684527687822 5.6922e-06 deg
node 186.5048812714507 7.0843e-06 deg
peri 245.2669726842079 1.0512e-05 deg
M 84.40075971994744 9.1547e-06 deg
tp 2458608.647874940832
(2019-May-05.14787494)
4.1184e-05 TDB
period 1671.392123594362
4.58
1.1403e-05
3.122e-08
d
yr
n .2153893122493678 1.4695e-09 deg/d
Q 3.755506544488409 1.7081e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1706  
   data-arc span      15572 days (42.63 yr)  
   first obs. used      1977-09-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42782  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:14:42  

Additional Information
 Earth MOID = .924437 au 
 Jupiter MOID = 2.29572 au 
 T_jup = 3.045 
[ 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 12.8   n/a MPO452235  
diameter diameter 6.712 km 1.472 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.171   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4969 Lawrence (1986 TU)          Discovered 1986-Oct-04 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1986 TU = 1977 RV4 = 1986 WC8 = 1988 GB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-02 00:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin