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JPL Small-Body Database Browser
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137 Meliboea
Classification: Main-belt Asteroid          SPK-ID: 2000137
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 102 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2117900558789224 3.3116e-08  
a 3.123351880119257 9.2375e-09 au
q 2.461857010899262 1.0569e-07 au
i 13.43112319212615 3.5399e-06 deg
node 202.2212032942285 1.1855e-05 deg
peri 107.2538472132314 1.4258e-05 deg
M 39.24579119405928 8.557e-06 deg
tp 2458380.703694822380
(2018-Sep-19.20369482)
4.7433e-05 TDB
period 2016.182307873077
5.52
8.9445e-06
2.449e-08
d
yr
n .1785552817293458 7.9213e-10 deg/d
Q 3.784846749339251 1.1194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2676  
   data-arc span      49175 days (134.63 yr)  
   first obs. used      1885-04-18  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45016  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:37:40  

Additional Information
 Earth MOID = 1.48853 au 
 Jupiter MOID = 1.81036 au 
 T_jup = 3.139 
[ 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 8.1   n/a MPO502154 IRAS observations used: 11
diameter diameter 128.678 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 25.676 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Jardine, D. (2009) Minor Planet Bull. 36, 52-54.]
[Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.065   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.689   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=7.19, mean=11.61, max.=17.67) deg.
U-B UB 0.326   0.041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=7.19, mean=11.08, max.=17.67) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

137 Meliboea          Discovered 1874-Apr-21 by Palisa, J. at Pola
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1958 UE = 1962 GB = A923 FA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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