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216494 (2000 AH51)
Classification: Main-belt Asteroid          SPK-ID: 2216494
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635925058151749 5.5065e-08  
a 3.040621699133305 2.234e-08 au
q 2.543198776136093 1.7719e-07 au
i 21.57952882562424 4.5895e-06 deg
node 242.8841619215556 1.5593e-05 deg
peri 167.0717238074681 2.6348e-05 deg
M 340.7946146834436 1.8482e-05 deg
tp 2459303.814799364784
(2021-Mar-30.31479936)
9.9496e-05 TDB
period 1936.609297771238
5.30
2.1343e-05
5.843e-08
d
yr
n .1858919093357183 2.0487e-09 deg/d
Q 3.538044622130517 2.5995e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1031  
   data-arc span      7791 days (21.33 yr)  
   first obs. used      1999-10-14  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43892  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:02  

Additional Information
 Earth MOID = 1.55767 au 
 Jupiter MOID = 1.84131 au 
 T_jup = 3.114 
[ 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 14.51   n/a E2021B55  
diameter diameter 9.036 km 2.808 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.045   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

216494 (2000 AH51)          Discovered 2000-Jan-04 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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