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18061 (1999 XH179)
Classification: Main-belt Asteroid          SPK-ID: 2018061
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09555065784881019 4.4903e-08  
a 2.965424100103582 2.0582e-08 au
q 2.682075876537969 1.3699e-07 au
i 11.95582067356005 5.4082e-06 deg
node 63.70260416178618 3.0126e-05 deg
peri 16.48795498098212 4.7131e-05 deg
M 29.87623886189087 3.4261e-05 deg
tp 2458845.706732336103
(2019-Dec-28.20673234)
0.00017752 TDB
period 1865.213911851693
5.11
1.9419e-05
5.317e-08
d
yr
n .1930073530507875 2.0094e-09 deg/d
Q 3.248772323669195 2.2549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      15035 days (41.16 yr)  
   first obs. used      1978-11-30  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56288  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:18:31  

Additional Information
 Earth MOID = 1.69947 au 
 Jupiter MOID = 2.04182 au 
 T_jup = 3.225 
[ 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 14.0   n/a MPO350946  
diameter diameter 6.058 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.110   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18061 (1999 XH179)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XH179 = 1978 WP15 = 1988 VC12 = 1996 JG4 = 1998 XA17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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