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109801 (2001 RE94)
Classification: Main-belt Asteroid          SPK-ID: 2109801
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623591820318342 4.6294e-08  
a 2.922227855659025 1.6385e-08 au
q 2.447777331303585 1.402e-07 au
i 7.639041050746774 4.7465e-06 deg
node 183.6529145773053 3.3404e-05 deg
peri 161.0583600103184 3.8526e-05 deg
M 283.0662475811469 1.772e-05 deg
tp 2459390.427581485785
(2021-Jun-24.92758149)
9.0972e-05 TDB
period 1824.607859637992
5.00
1.5346e-05
4.202e-08
d
yr
n .1973026686794088 1.6594e-09 deg/d
Q 3.396678380014465 1.9046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      7760 days (21.25 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53755  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:33:35  

Additional Information
 Earth MOID = 1.44223 au 
 Jupiter MOID = 2.04675 au 
 T_jup = 3.246 
[ 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 15.4   n/a MPO432619  
diameter diameter 5.038 km 0.483 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109801 (2001 RE94)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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