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100037 (1991 RM)
Classification: Main-belt Asteroid          SPK-ID: 2100037
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2825411492982588 2.9537e-08  
a 2.340092129785257 9.3275e-09 au
q 1.678919809971921 6.702e-08 au
i 12.9156949018073 3.3526e-06 deg
node 157.2313914598066 1.4971e-05 deg
peri 190.1501475930961 1.5982e-05 deg
M 62.13510981422399 5.9737e-06 deg
tp 2458974.825530457931
(2020-May-05.32553046)
2.1204e-05 TDB
period 1307.518555580739
3.58
7.8175e-06
2.14e-08
d
yr
n .2753307006339995 1.6462e-09 deg/d
Q 3.001264449598594 1.1963e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1068  
   data-arc span      10757 days (29.45 yr)  
   first obs. used      1991-09-04  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4794  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:18  

Additional Information
 Earth MOID = .671231 au 
 Jupiter MOID = 2.42619 au 
 T_jup = 3.478 
[ 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 15.53   n/a MPCxxxxx  
diameter diameter 5.351 km 0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100037 (1991 RM)          Discovered 1991-Sep-04 by Helin, E. F. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1991 RM = 2001 KT41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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