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18723 (1998 JO1)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1478049212657662 3.7716e-08  
a 3.233906157867867 1.7772e-08 au
q 2.755918912823331 1.22e-07 au
i 2.054720845847838 3.572e-06 deg
node 58.75637840343504 0.00012112 deg
peri 239.6167001939308 0.00012207 deg
M 220.1746872076256 1.8204e-05 deg
tp 2459825.535898225558
(2022-Sep-03.03589823)
0.00011017 TDB
period 2124.171349448245
5.82
1.751e-05
4.794e-08
d
yr
n .1694778531371823 1.3971e-09 deg/d
Q 3.711893402912404 2.0399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1939  
   data-arc span      13689 days (37.48 yr)  
   first obs. used      1982-11-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:52:25  

Additional Information
 Earth MOID = 1.74091 au 
 Jupiter MOID = 1.50354 au 
 T_jup = 3.167 
[ show covariance matrix ]

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 13.0   n/a MPO337416  
diameter diameter 12.174 km 0.413 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18723 (1998 JO1)          Discovered 1998-May-01 by JPL/GEODSS NEAT at Haleakala
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 JO1 = 1992 GG7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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