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74739 (1999 RG184)
Classification: Main-belt Asteroid          SPK-ID: 2074739
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1986338125674642 3.4847e-08  
a 2.365631114940245 1.034e-08 au
q 1.895736787451443 8.4152e-08 au
i 3.325784989499915 3.9763e-06 deg
node 91.44977873900189 6.8368e-05 deg
peri 219.2624134436979 6.9081e-05 deg
M 276.629504970181 9.9444e-06 deg
tp 2459308.271812403251
(2021-Apr-03.77181240)
3.7135e-05 TDB
period 1328.98158305935
3.64
8.7137e-06
2.386e-08
d
yr
n .270884115016305 1.7761e-09 deg/d
Q 2.835525442429046 1.2394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      10638 days (29.13 yr)  
   first obs. used      1991-04-10  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:33  

Additional Information
 Earth MOID = .882697 au 
 Jupiter MOID = 2.43258 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457122.5 (2015-Apr-10.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1992312003236092 3.4979e-08  
q 1.894291885874716 8.449e-08 au
tp 2456647.886259160415
(2013-Dec-21.38625916)
3.6708e-05 TDB
node 91.52986194600604 6.8299e-05 deg
peri 218.8516987314052 6.9002e-05 deg
i 3.327311533513109 3.9787e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      10638 days (29.13 yr)  
   first obs. used      1991-04-10  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53462  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:33  

Additional Information
 Jupiter MOID = 2.43258 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.223555873149584E-15 -2.941637406880849E-15 -1.073564510826752E-14 1.213773227563154E-14 -1.429066774702913E-14 -2.70757107451617E-16
q -2.941637406880849E-15 7.138627325071193E-15 -4.223939523181853E-14 -2.929452710094615E-14 2.245375935075923E-14 7.816170555758054E-16
tp -1.073564510826752E-14 -4.223939523181853E-14 1.347474920167482E-9 -7.385717328630712E-12 3.749942289719227E-10 8.086223686467436E-13
node 1.213773227563154E-14 -2.929452710094615E-14 -7.385717328630712E-12 4.664809027824136E-9 -4.658354492562954E-9 -1.194847438062996E-11
peri -1.429066774702913E-14 2.245375935075923E-14 3.749942289719227E-10 -4.658354492562954E-9 4.761296962142662E-9 1.215596156983752E-11
i -2.70757107451617E-16 7.816170555758054E-16 8.086223686467436E-13 -1.194847438062996E-11 1.215596156983752E-11 1.583016783836304E-11

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 16.02   n/a E2021B10  
diameter diameter 1.461 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.361   0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74739 (1999 RG184)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RG184 = 2002 GG14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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