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9852 Gora (1990 YX)
Classification: Main-belt Asteroid          SPK-ID: 2009852
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361492894546727 3.2045e-08  
a 2.553277818547981 8.6913e-09 au
q 2.205650857772297 8.1131e-08 au
i 5.249012535056937 5.8538e-06 deg
node 8.121791666887512 3.0085e-05 deg
peri 77.71316524220046 4.6237e-05 deg
M 182.4384603992047 3.1284e-05 deg
tp 2460131.507780993487
(2023-Jul-06.00778099)
0.00013034 TDB
period 1490.203350075425
4.08
7.6089e-06
2.083e-08
d
yr
n .2415777685520429 1.2335e-09 deg/d
Q 2.900904779323665 9.8746e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1930  
   data-arc span      15947 days (43.66 yr)  
   first obs. used      1977-10-16  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47441  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:54:24  

Additional Information
 Earth MOID = 1.22889 au 
 Jupiter MOID = 2.31171 au 
 T_jup = 3.420 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456990.5 (2014-Nov-29.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351849550326354 3.123e-08  
q 2.208466460936231 7.8514e-08 au
tp 2457152.908238500412
(2015-May-10.40823850)
0.00012945 TDB
node 8.151021241307987 3.0089e-05 deg
peri 78.25916858662876 4.6428e-05 deg
i 5.249061589811161 5.8515e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1930  
   data-arc span      15947 days (43.66 yr)  
   first obs. used      1977-10-16  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47441  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 09:54:24  

Additional Information
 Jupiter MOID = 2.31171 au 
 T_jup = 3.420 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.753158146135698E-16 -2.441020222342695E-15 -2.437831465712253E-12 1.741672402130321E-14 -6.778257515793424E-13 -8.855154840200518E-16
q -2.441020222342695E-15 6.164384564315314E-15 6.253830817059926E-12 -4.532465275391488E-14 1.735480400749574E-12 1.960292533256485E-15
tp -2.437831465712253E-12 6.253830817059926E-12 1.67561632816911E-8 -1.095232969284306E-10 4.581161849688276E-9 2.587539824087369E-12
node 1.741672402130321E-14 -4.532465275391488E-14 -1.095232969284306E-10 9.053397366307053E-10 -9.303682599913965E-10 1.3002019488082E-11
peri -6.778257515793424E-13 1.735480400749574E-12 4.581161849688276E-9 -9.303682599913965E-10 2.155570235637628E-9 -1.223889409433785E-11
i -8.855154840200518E-16 1.960292533256485E-15 2.587539824087369E-12 1.3002019488082E-11 -1.223889409433785E-11 3.423963697422501E-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 14.29   n/a E2021B10  
diameter diameter 3.663 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.331   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9852 Gora           Discovered 1990 Dec. 24 by T. Seki at Geisei.
Ronald Gora (b. 1933) is a former American swimmer who finished eighth in the men's 100-meter free-style at the 1952 Helsinki Olympics. His remarkable sportsmanship impressed many when he disqualified himself by telling the officials of his own rule violation at a competition in Japan.
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 2013-11-17Last Updated: 2014-11-10

Alternate Designations
 1990 YX = 1977 UW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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