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227989 (2007 JP7)
Classification: Main-belt Asteroid          SPK-ID: 2227989
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03668976233671479 5.8722e-08  
a 2.79886097452518 3.2385e-08 au
q 2.696171430556344 1.6552e-07 au
i 1.32094525181557 7.0906e-06 deg
node 59.95189014585397 0.0003448 deg
peri 233.1725293287471 0.00038113 deg
M 265.1024762925751 0.00016929 deg
tp 2459651.340368424452
(2022-Mar-12.84036842)
0.00080777 TDB
period 1710.292600818455
4.68
2.9684e-05
8.127e-08
d
yr
n .2104902984598794 3.6533e-09 deg/d
Q 2.901550518494015 3.3573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      7460 days (20.42 yr)  
   first obs. used      1999-10-19  
   last obs. used      2020-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51634  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:56  

Additional Information
 Earth MOID = 1.67831 au 
 Jupiter MOID = 2.15362 au 
 T_jup = 3.325 
[ 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 16.64   n/a E2021B55  

227989 (2007 JP7)          Discovered 2007-May-09 by Mt. Lemmon Survey at Mount Lemmon
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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