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79781 (1998 UF40)
Classification: Main-belt Asteroid          SPK-ID: 2079781
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .235938669318365 5.6555e-08  
a 2.297671206487562 8.1828e-09 au
q 1.755561719497764 1.286e-07 au
i 4.115238121881568 4.6367e-06 deg
node 349.1502918613274 7.3003e-05 deg
peri 333.4498734051019 7.5034e-05 deg
M 118.0152549502933 2.1558e-05 deg
tp 2458583.471344547338
(2019-Apr-09.97134455)
7.5634e-05 TDB
period 1272.126353717504
3.48
6.7957e-06
1.861e-08
d
yr
n .2829907571272151 1.5117e-09 deg/d
Q 2.83978069347736 1.0113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1067  
   data-arc span      10366 days (28.38 yr)  
   first obs. used      1991-09-11  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47823  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:46:45  

Additional Information
 Earth MOID = .744495 au 
 Jupiter MOID = 2.4946 au 
 T_jup = 3.553 
[ 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 15.3   n/a MPO449500  

79781 (1998 UF40)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 UF40 = 1991 RR26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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