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30547 (2001 OS44)
Classification: Main-belt Asteroid          SPK-ID: 2030547
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06695811329080496 4.1734e-08  
a 2.675148569135924 1.3619e-08 au
q 2.496025668173986 1.0823e-07 au
i 15.11167759670793 4.0089e-06 deg
node 112.1010098422175 1.3893e-05 deg
peri 241.2545584395546 3.1764e-05 deg
M 167.755423058779 2.8391e-05 deg
tp 2458651.777707498749
(2019-Jun-17.27770750)
0.00012526 TDB
period 1598.160109593073
4.38
1.2204e-05
3.341e-08
d
yr
n .2252590324580583 1.7202e-09 deg/d
Q 2.854271470097863 1.4531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      9081 days (24.86 yr)  
   first obs. used      1996-06-07  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4669  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:48:49  

Additional Information
 Earth MOID = 1.5189 au 
 Jupiter MOID = 2.47182 au 
 T_jup = 3.326 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457599.5 (2016-Jul-30.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06774024980659094 4.2165e-08  
q 2.492911716753524 1.0954e-07 au
tp 2457047.280090503464
(2015-Jan-24.78009050)
0.00012145 TDB
node 112.2214793497197 1.39e-05 deg
peri 239.6855707992218 3.1179e-05 deg
i 15.10903867063127 4.0088e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1061  
   data-arc span      9081 days (24.86 yr)  
   first obs. used      1996-06-07  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4669  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:48:49  

Additional Information
 Jupiter MOID = 2.47182 au 
 T_jup = 3.326 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.777874526054945E-15 -4.590854813007202E-15 -6.864236330410539E-13 -6.404267946187154E-15 -2.075380453065934E-13 -2.194228652154884E-15
q -4.590854813007202E-15 1.199841252524584E-14 1.910921520725239E-12 1.684815045409351E-14 5.755322186535307E-13 6.409772323398008E-15
tp -6.864236330410539E-13 1.910921520725239E-12 1.475086207560697E-8 -1.521223699281967E-11 3.399336659395678E-9 -8.54136829403613E-12
node -6.404267946187154E-15 1.684815045409351E-14 -1.521223699281967E-11 1.932058501232872E-10 -1.894858826744109E-10 4.669470276402473E-12
peri -2.075380453065934E-13 5.755322186535307E-13 3.399336659395678E-9 -1.894858826744109E-10 9.721371292585194E-10 -6.425162774359261E-12
i -2.194228652154884E-15 6.409772323398008E-15 -8.54136829403613E-12 4.669470276402473E-12 -6.425162774359261E-12 1.607012754371573E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.86   n/a MPCxxxxx  
diameter diameter 3.293 km 0.484 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.235   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30547 (2001 OS44)          Discovered 2001-Jul-23 by JPL/GEODSS NEAT at Haleakala
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 OS44 = 1996 LD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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