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18759 (1999 HO2)
Classification: Main-belt Asteroid          SPK-ID: 2018759
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2433608448601175 3.5669e-08  
a 2.338066303442828 8.0974e-09 au
q 1.76907251249801 8.4684e-08 au
i 4.750820606086667 4.3448e-06 deg
node 14.23989630758569 4.0947e-05 deg
peri 306.4951201881274 4.1882e-05 deg
M 357.0737745696231 8.5825e-06 deg
tp 2459407.114240911089
(2021-Jul-11.61424091)
3.1134e-05 TDB
period 1305.821037684011
3.58
6.7836e-06
1.857e-08
d
yr
n .2756886201178776 1.4322e-09 deg/d
Q 2.907060094387647 1.0068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1531  
   data-arc span      11606 days (31.78 yr)  
   first obs. used      1989-10-29  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51713  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:12:34  

Additional Information
 Earth MOID = .761022 au 
 Jupiter MOID = 2.43121 au 
 T_jup = 3.521 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.83   n/a MPO636347  
diameter diameter 2.903 km 0.133 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18759 (1999 HO2)          Discovered 1999-Apr-20 by Holvorcem, P. R. at Valinhos
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 HO2 = 1989 UR2 = 1989 VA5 = 1989 VL5 = 1996 TJ61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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