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20548 (1999 RM107)
Classification: Main-belt Asteroid          SPK-ID: 2020548
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146521953291457 3.2257e-08  
a 3.192813867913583 1.7277e-08 au
q 2.724996543490833 1.0167e-07 au
i 1.92523720767598 3.6911e-06 deg
node 296.3502332164335 0.00011488 deg
peri 140.4087432155642 0.00011569 deg
M 219.8029108485728 1.5076e-05 deg
tp 2460012.012706780431
(2023-Mar-08.51270678)
9.1103e-05 TDB
period 2083.813410172941
5.71
1.6913e-05
4.631e-08
d
yr
n .1727601896803815 1.4022e-09 deg/d
Q 3.660631192336333 1.9808e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1382  
   data-arc span      9453 days (25.88 yr)  
   first obs. used      1993-08-16  
   last obs. used      2019-07-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54086  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:23:42  

Additional Information
 Earth MOID = 1.74026 au 
 Jupiter MOID = 1.5962 au 
 T_jup = 3.179 
[ 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 13.7   n/a MPO435890  
diameter diameter 9.028 km 0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20548 (1999 RM107)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RM107 = 1993 QF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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