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19622 (1999 RY2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019622
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171300907963707 3.2055e-08  
a 3.234144424102101 1.9621e-08 au
q 2.680132547767651 1.0851e-07 au
i 12.33469962155007 4.2103e-06 deg
node 176.6743466667619 1.5885e-05 deg
peri 83.77217854899089 1.9841e-05 deg
M 309.9718735891159 1.3042e-05 deg
tp 2459495.722381627511
(2021-Oct-08.22238163)
7.7697e-05 TDB
period 2124.406109335761
5.82
1.9332e-05
5.293e-08
d
yr
n .1694591247963231 1.5421e-09 deg/d
Q 3.788156300436551 2.2982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1502  
   data-arc span      10048 days (27.51 yr)  
   first obs. used      1993-09-18  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5259  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:56:42  

Additional Information
 Earth MOID = 1.70008 au 
 Jupiter MOID = 1.46782 au 
 T_jup = 3.126 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1705702219737411 3.2118e-08  
q 2.682918497165294 1.0865e-07 au
tp 2457366.722415752971
(2015-Dec-10.22241575)
7.462e-05 TDB
node 176.7170012334574 1.5886e-05 deg
peri 83.29466190316073 1.986e-05 deg
i 12.33268407937091 4.2099e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1502  
   data-arc span      10048 days (27.51 yr)  
   first obs. used      1993-09-18  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5259  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:56:42  

Additional Information
 Jupiter MOID = 1.46782 au 
 T_jup = 3.126 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.031575572379161E-15 -3.452777347337182E-15 -6.179389096457443E-13 -1.635932823259146E-16 -8.211174139667859E-14 9.353189351709347E-17
q -3.452777347337182E-15 1.180414398413473E-14 2.053067947401857E-12 5.665813541474431E-15 2.592698399859665E-13 5.367596530976737E-15
tp -6.179389096457443E-13 2.053067947401857E-12 5.568166239575752E-9 4.621739783073797E-12 9.054514597084511E-10 -2.496920934614723E-12
node -1.635932823259146E-16 5.665813541474431E-15 4.621739783073797E-12 2.523792667214419E-10 -2.453000513871799E-10 7.366270390010219E-12
peri -8.211174139667859E-14 2.592698399859665E-13 9.054514597084511E-10 -2.453000513871799E-10 3.944386685325961E-10 -7.316837064452067E-12
i 9.353189351709347E-17 5.367596530976737E-15 -2.496920934614723E-12 7.366270390010219E-12 -7.316837064452067E-12 1.772341822668896E-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 13.46   n/a MPCxxxxx  
diameter diameter 11.343 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19622 (1999 RY2)          Discovered 1999-Sep-06 by Korlevic, K. at Visnjan
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RY2 = 1997 HG4 = 1998 MG12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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