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3768 Monroe (1937 RB)
Classification: Main-belt Asteroid          SPK-ID: 2003768
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144873922475572 4.24e-08  
a 3.09531899749566 1.5191e-08 au
q 2.431412097548493 1.2569e-07 au
i 13.94512314166204 3.6034e-06 deg
node 147.5919793034949 1.5144e-05 deg
peri 224.0381472579861 1.6948e-05 deg
M 96.28035036484334 7.4935e-06 deg
tp 2458668.524406322457
(2019-Jul-04.02440632)
4.1269e-05 TDB
period 1989.099676083495
5.45
1.4642e-05
4.009e-08
d
yr
n .1809864052206947 1.3323e-09 deg/d
Q 3.759225897442827 1.8449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2709  
   data-arc span      30511 days (83.53 yr)  
   first obs. used      1937-09-07  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40993  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:11:07  

Additional Information
 Earth MOID = 1.44905 au 
 Jupiter MOID = 1.77818 au 
 T_jup = 3.143 
[ 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 11.68   n/a MPCxxxxx  
diameter diameter 26.601 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.069   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3768 Monroe (1937 RB)          Discovered 1937-Sep-05 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1937 RB = 1969 MC = 1975 RW = 1978 EJ5 = 1981 UB20 = 1983 CZ3 = 1988 AD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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