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4900 Maymelou (1988 ME)
Classification: Main-belt Asteroid          SPK-ID: 2004900
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1288198806527142 2.916e-08  
a 2.379138510713956 8.3524e-09 au
q 2.072658171707508 6.8418e-08 au
i 5.93467358895326 3.8743e-06 deg
node 209.7464845904046 3.1051e-05 deg
peri 91.34827127018234 3.5201e-05 deg
M 232.8829471108656 1.8077e-05 deg
tp 2459473.792183396047
(2021-Sep-16.29218340)
6.8506e-05 TDB
period 1340.38024128186
3.67
7.0585e-06
1.933e-08
d
yr
n .2685805034366348 1.4143e-09 deg/d
Q 2.685618849720405 9.4283e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2381  
   data-arc span      15103 days (41.35 yr)  
   first obs. used      1978-12-22  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:13:48  

Additional Information
 Earth MOID = 1.06773 au 
 Jupiter MOID = 2.51643 au 
 T_jup = 3.521 
[ 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 13.5   n/a MPO502200  
diameter diameter 4.654 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.514   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B V   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)

4900 Maymelou (1988 ME)          Discovered 1988-Jun-16 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 ME = 1978 YU = 1984 JR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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