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123911 (2001 DF89)
Classification: Main-belt Asteroid          SPK-ID: 2123911
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07325193589574826 4.4083e-08  
a 2.976613911296659 2.4605e-08 au
q 2.758571179879963 1.2682e-07 au
i 10.59608309091677 4.6809e-06 deg
node 164.6854734736335 2.5845e-05 deg
peri 105.55147295 4.2988e-05 deg
M 183.5083000155064 3.6493e-05 deg
tp 2459920.110609511550
(2022-Dec-06.61060951)
0.00019314 TDB
period 1875.781237606327
5.14
2.3258e-05
6.368e-08
d
yr
n .1919200345875054 2.3796e-09 deg/d
Q 3.194656642713354 2.6407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      6907 days (18.91 yr)  
   first obs. used      2001-02-27  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57619  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:39:51  

Additional Information
 Earth MOID = 1.76673 au 
 Jupiter MOID = 1.93933 au 
 T_jup = 3.231 
[ 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 15.2   n/a MPO351723  

123911 (2001 DF89)          Discovered 2001-Feb-27 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 DF89 = 2003 US139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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