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227960 (2007 HN7)
Classification: Main-belt Asteroid          SPK-ID: 2227960
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 .110915566420684 5.1178e-08  
a 3.169731694678587 3.47e-08 au
q 2.818159108361717 1.6082e-07 au
i 13.65688647201284 7.0863e-06 deg
node 42.29530401953886 2.4723e-05 deg
peri 201.3939566974663 4.8513e-05 deg
M 133.9428045866058 4.6569e-05 deg
tp 2458433.581758057651
(2018-Nov-11.08175806)
0.00025942 TDB
period 2061.257175787513
5.64
3.3848e-05
9.267e-08
d
yr
n .1746506958125981 2.8679e-09 deg/d
Q 3.521304280995457 3.8549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      7579 days (20.75 yr)  
   first obs. used      2000-04-06  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:49  

Additional Information
 Earth MOID = 1.8093 au 
 Jupiter MOID = 1.49398 au 
 T_jup = 3.149 
[ 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 15.0   n/a MPO440188  
diameter diameter 5.481 km 1.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227960 (2007 HN7)          Discovered 2007-Apr-16 by LINEAR at Socorro
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

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