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249018 (2007 RF139)
Classification: Main-belt Asteroid          SPK-ID: 2249018
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09667931912119913 5.2928e-08  
a 2.40606815569857 1.9432e-08 au
q 2.173451124646433 1.2667e-07 au
i 4.383134428731107 5.298e-06 deg
node 215.2448847879064 7.6821e-05 deg
peri 64.05874622517382 8.2058e-05 deg
M 253.6678940688778 3.1004e-05 deg
tp 2459603.144924726313
(2022-Jan-23.64492473)		 0.00011813 TDB
period 1363.202314410731
3.73		 1.6514e-05
4.521e-08		 d
yr
n .2640840586861948 3.1992e-09 deg/d
Q 2.638685186750708 2.131e-08 au
   Orbit Determination Parameters
   # obs. used (total)      233  
   data-arc span      8032 days (21.99 yr)  
   first obs. used      1998-01-31  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5084  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:18:59  

Additional Information
 Earth MOID = 1.1596 au 
 Jupiter MOID = 2.45006 au 
 T_jup = 3.512 
[ 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 16.9   n/a MPO454844  
diameter diameter 2.625 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249018 (2007 RF139)          Discovered 2007-Sep-15 by Ferrando, R. at Pla D'Arguines
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1976-Jan-17 03:46 < 00:01 Juno 0.02027963888195 0.020275197151209 0.0202840952550434 7.18024413944044 7.18024405589042 2442794.656985724 0.500169726608882 943.218085635625 77.4640668557533 -77.2269016332286 38188.2577059208 T 11 CATAB v2.0f-lin.ifort 2020-Feb-25 10:19:02 2020-Feb-25 10:19
2064-Dec-03 21:13 00:03 David 0.0382066404063984 0.0381811811459042 0.0382320996671043 6.24183783551006 6.24183777216224 2475258.384295641 2.59163512988416 1269.11658636946 38.7976160602601 0.257581778323573 4549.78098465243 T 11 CATAB v2.0f-lin.ifort 2020-Feb-25 10:19:02 2020-Feb-25 10:19
2075-Oct-28 01:56 00:19 Psych 0.0442883803143298 0.0442839714112863 0.0442928009556169 2.20781543768107 2.20781531394377 2479238.580431657 19.0454518009609 1224.24198341862 74.0718531851774 -80.2323919631168 87895.2544038657 T 11 CATAB v2.0f-lin.ifort 2020-Feb-25 10:19:02 2020-Feb-25 10:19
2187-Feb-17 12:46 00:05 Amphi 0.0439066240044589 0.0438449504730577 0.0439684273965414 4.57244329632727 4.57244326769244 2519893.032245106 5.01092076544886 4862.75031987626 64.9689168744331 50.7415083067295 78254.0772813843 T 11 CATAB v2.0f-lin.ifort 2020-Feb-25 10:19:02 2020-Feb-25 10:19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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