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118330 (1999 AP)
Classification: Main-belt Asteroid          SPK-ID: 2118330
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168138616179809 5.4033e-08  
a 2.387804300496747 1.276e-08 au
q 1.986322189703027 1.2832e-07 au
i 5.001810745972731 6.2138e-06 deg
node 348.2034645397881 5.3465e-05 deg
peri 155.9498777762335 5.6131e-05 deg
M 237.8820119141797 1.6249e-05 deg
tp 2459457.665724059221
(2021-Aug-31.16572406)
6.2281e-05 TDB
period 1347.710220591405
3.69
1.0803e-05
2.958e-08
d
yr
n .2671197372399714 2.1411e-09 deg/d
Q 2.789286411290467 1.4905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      405  
   data-arc span      7058 days (19.32 yr)  
   first obs. used      1998-12-17  
   last obs. used      2018-04-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61121  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:38:15  

Additional Information
 Earth MOID = .99962 au 
 Jupiter MOID = 2.22182 au 
 T_jup = 3.510 
[ 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 16.4   n/a MPO390539  
diameter diameter 3.450 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118330 (1999 AP)          Discovered 1999-Jan-04 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1999 AP = 2001 SU350 = 2003 AE57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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