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58518 (1997 AC2)
Classification: Main-belt Asteroid          SPK-ID: 2058518
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805680842966011 4.9395e-08  
a 3.101488316722446 2.0676e-08 au
q 2.541458512903584 1.5087e-07 au
i 7.824962434881903 5.3899e-06 deg
node 332.868262740271 3.4364e-05 deg
peri 181.4644589774007 3.7484e-05 deg
M 160.8973223403541 1.3313e-05 deg
tp 2458504.838598879935
(2019-Jan-21.33859888)
7.3526e-05 TDB
period 1995.049387610068
5.46
1.995e-05
5.462e-08
d
yr
n .1804466607371837 1.8044e-09 deg/d
Q 3.661518120541309 2.4409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1076  
   data-arc span      8198 days (22.44 yr)  
   first obs. used      1997-01-03  
   last obs. used      2019-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49294  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:30:43  

Additional Information
 Earth MOID = 1.55244 au 
 Jupiter MOID = 1.34132 au 
 T_jup = 3.182 
[ 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 13.93   n/a MPCxxxxx  
diameter diameter 10.308 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58518 (1997 AC2)          Discovered 1997-Jan-03 by Kobayashi, T. at Oizumi
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 AC2 = 2000 SP28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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