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4969 Lawrence (1986 TU)
Classification: Main-belt Asteroid          SPK-ID: 2004969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3625824805171543 1.8315e-08  
a 2.755811578183944 1.2107e-08 au
q 1.756602580328116 5.0163e-08 au
i 31.44961709645427 8.3637e-07 deg
node 186.5070019068884 1.4573e-06 deg
peri 245.2382782188911 2.2997e-06 deg
M 127.5200810684507 3.6467e-06 deg
tp 2458608.599390874559
(2019-May-05.09939087)
1.3283e-05 TDB
period 1670.985600854337
4.57
1.1012e-05
3.015e-08
d
yr
n .2154417128525465 1.4197e-09 deg/d
Q 3.755020576039772 1.6497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1908  
   data-arc span      15900 days (43.53 yr)  
   first obs. used      1977-09-09  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:58:50  

Additional Information
 Earth MOID = .923023 au 
 Jupiter MOID = 2.29684 au 
 T_jup = 3.045 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.86   n/a E2021B10  
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

Alternate Designations
 1986 TU = 1977 RV4 = 1986 WC8 = 1988 GB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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