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181773 (1997 LH5)
Classification: Jupiter Trojan          SPK-ID: 2181773
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07208854650654481 6.6766e-08  
a 5.145705189325258 1.3737e-07 au
q 4.774758781475615 4.4018e-07 au
i 12.18166891908942 5.3354e-06 deg
node 119.1672316522845 3.7124e-05 deg
peri 193.0023046878243 7.2749e-05 deg
M 302.2751284337489 6.6377e-05 deg
tp 2459884.138090609907
(2022-Oct-31.63809061)
0.00079499 TDB
period 4263.495196123656
11.67
0.00017073
4.674e-07
d
yr
n .08443776372195984 3.3813e-09 deg/d
Q 5.516651597174901 1.4727e-07 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      8446 days (23.12 yr)  
   first obs. used      1997-06-02  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:59  

Additional Information
 Earth MOID = 3.75952 au 
 Jupiter MOID = .22749 au 
 T_jup = 2.950 
[ 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 13.24   n/a E2021B55  
diameter diameter 11.244 km 1.087 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.073   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

181773 (1997 LH5)          Discovered 1997-Jun-02 by Spacewatch at Kitt Peak
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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