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447753 (2007 HL81)
Classification: Main-belt Asteroid          SPK-ID: 2447753
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471877760876169 7.4848e-08  
a 3.097780230879591 5.2007e-08 au
q 2.64182484788824 2.3478e-07 au
i 16.92881715029698 1.1503e-05 deg
node 32.68852375587293 2.3155e-05 deg
peri 118.4580689470679 4.5914e-05 deg
M 189.9784224895855 3.8125e-05 deg
tp 2459941.036974647432
(2022-Dec-27.53697465)
0.00022153 TDB
period 1991.472587368125
5.45
5.0151e-05
1.373e-07
d
yr
n .1807707534030212 4.5523e-09 deg/d
Q 3.553735613870942 5.9662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      4100 days (11.23 yr)  
   first obs. used      2007-03-13  
   last obs. used      2018-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:14:55  

Additional Information
 Earth MOID = 1.69599 au 
 Jupiter MOID = 1.57379 au 
 T_jup = 3.140 
[ 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 16.3   n/a MPO456122  

447753 (2007 HL81)          Discovered 2007-Mar-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Alternate Designations
 2007 HL81 = 2010 VW185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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