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78977 (2003 TL18)
Classification: Main-belt Asteroid          SPK-ID: 2078977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446746043540812 3.5644e-08  
a 2.310463116792185 9.7648e-09 au
q 1.976197779495579 8.4827e-08 au
i 3.080588114624198 3.8872e-06 deg
node 344.37625655 7.6188e-05 deg
peri 11.75510082803578 7.7421e-05 deg
M 292.7359442898511 1.472e-05 deg
tp 2459240.177648893614
(2021-Jan-25.67764889)
5.2913e-05 TDB
period 1282.764660720309
3.51
8.1321e-06
2.226e-08
d
yr
n .2806438398434282 1.7791e-09 deg/d
Q 2.644728454088792 1.1178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      7668 days (20.99 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48708  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:51  

Additional Information
 Earth MOID = .971735 au 
 Jupiter MOID = 2.7862 au 
 T_jup = 3.569 
[ 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 16.1   n/a MPO337850  
diameter diameter 3.405 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78977 (2003 TL18)          Discovered 2003-Oct-15 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2003 TL18 = 2001 BN56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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