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101958 (1999 RS37)
Classification: Main-belt Asteroid          SPK-ID: 2101958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1686821783843067 8.0752e-08  
a 2.560450815262612 2.0974e-08 au
q 2.128548394098241 1.9797e-07 au
i 12.28395335898104 9.7718e-06 deg
node 265.0207481337712 3.3118e-05 deg
peri 108.7260984232437 4.7987e-05 deg
M 354.8713692418141 3.0743e-05 deg
tp 2459021.819254562705
(2020-Jun-21.31925456)
0.0001278 TDB
period 1496.48746506533
4.10
1.8387e-05
5.034e-08
d
yr
n .2405633247213895 2.9558e-09 deg/d
Q 2.992353236426983 2.4512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7788 days (21.32 yr)  
   first obs. used      1999-07-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47381  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:45  

Additional Information
 Earth MOID = 1.16751 au 
 Jupiter MOID = 2.58198 au 
 T_jup = 3.383 
[ 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 15.7   n/a MPO395897  
diameter diameter 4.002 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101958 (1999 RS37)          Discovered 1999-Sep-12 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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