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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2433608456743459 3.5792e-08  
a 2.338066302637178 9.6162e-09 au
q 1.769072509984703 8.4799e-08 au
i 4.750822782683992 4.6418e-06 deg
node 14.23990426376926 4.2146e-05 deg
peri 306.4951118242307 4.3217e-05 deg
M 357.0737754939112 1.1409e-05 deg
tp 2459407.114237552951
(2021-Jul-11.61423755)
4.141e-05 TDB
period 1305.821037009071
3.58
8.056e-06
2.206e-08
d
yr
n .2756886202603728 1.7008e-09 deg/d
Q 2.907060095289653 1.1956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1477  
   data-arc span      11563 days (31.66 yr)  
   first obs. used      1989-10-29  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:40:53  

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 14.80   n/a MPO614063  
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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