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76818 Brianenke (2000 RG79)
Classification: Inner Main-belt Asteroid          SPK-ID: 2076818
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 62 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09577146527281837 1.4808e-08  
a 1.930188850802714 4.8677e-09 au
q 1.745331836308081 2.9195e-08 au
i 18.13486517747118 5.8482e-07 deg
node 292.3140438401023 1.7592e-06 deg
peri 129.448623873445 1.0727e-05 deg
M 253.1967378825841 1.2356e-05 deg
tp 2459687.089653985626
(2022-Apr-17.58965399)
3.3897e-05 TDB
period 979.4857700115749
2.68
3.7052e-06
1.014e-08
d
yr
n .3675397959030541 1.3903e-09 deg/d
Q 2.115045865297347 5.3339e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1932  
   data-arc span      15101 days (41.34 yr)  
   first obs. used      1980-02-20  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:44:02  

Additional Information
 Earth MOID = .795799 au 
 Jupiter MOID = 3.10616 au 
 T_jup = 3.848 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457454.5 (2016-Mar-07.0) TDB
Reference: JPL 62 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09588947430761795 1.4796e-08  
q 1.744852619469537 2.9171e-08 au
tp 2457728.585540484354
(2016-Dec-06.08554048)
3.266e-05 TDB
node 292.3527010909676 1.7591e-06 deg
peri 129.4419683414972 1.0712e-05 deg
i 18.13273233492969 5.8493e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1932  
   data-arc span      15101 days (41.34 yr)  
   first obs. used      1980-02-20  
   last obs. used      2021-06-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37061  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:44:02  

Additional Information
 Jupiter MOID = 3.10616 au 
 T_jup = 3.848 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.189133693852073E-16 -4.266373121884849E-16 2.792172267260498E-13 -1.785679883967948E-14 9.718013143034957E-14 -3.266763204430311E-15
q -4.266373121884849E-16 8.509378145766855E-16 -5.316472108892759E-13 3.425799560785502E-14 -1.878766365627984E-13 6.086378122539118E-15
tp 2.792172267260498E-13 -5.316472108892759E-13 1.066648735920209E-9 -2.040939111815273E-11 3.475892043429859E-10 1.27555652476014E-12
node -1.785679883967948E-14 3.425799560785502E-14 -2.040939111815273E-11 3.094374237105606E-12 -8.150258198426736E-12 8.725882788743584E-14
peri 9.718013143034957E-14 -1.878766365627984E-13 3.475892043429859E-10 -8.150258198426736E-12 1.147556318818728E-10 5.828824994921542E-13
i -3.266763204430311E-15 6.086378122539118E-15 1.27555652476014E-12 8.725882788743584E-14 5.828824994921542E-13 3.42148375693191E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.84   n/a E2021B10  
rotation period rot_per 3.1664 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Pravec, P.; Pray, D. (2005) IAUC 8592.]
[Warner, B.D.; Stephens, R.D. (2009) Minor Planet Bull. 36, 62-63.]
[Warner, B.D.; Pravec, P.; Kusnirak, P.; Harris, A.W.; et al. (2011) Minor Planet Bull. 38, 107-109.]
[Pravec, P.; Scheirich, P.; Vokrouhlicky, D.; Harris, A.W.; et al. (2012) Icarus 218, 125-143. See also supplemental on-line material.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 54-57.]
[Stephens, R.D.; Warner, B.D. (2020) Minor Planet Bull. 47, 224-230.]

76818 Brianenke          
Brian L. Enke (b. 1964) is a systems and data analyst, and planetary scientist, at Southwest Research Institute, and also a recognized science-fiction author. He has participated in multiple interplanetary spacecraft missions and in the discovery of several asteroid satellites from imaging.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2019-12-12Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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