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120247 (2004 FR139)
Classification: Main-belt Asteroid          SPK-ID: 2120247
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746265382393883 3.1757e-08  
a 2.324930339819084 1.012e-08 au
q 1.918935802928752 7.3031e-08 au
i 2.288114187513849 4.6748e-06 deg
node 173.0351448812284 9.1259e-05 deg
peri 71.63486996572132 9.2642e-05 deg
M 175.0423174731344 1.5169e-05 deg
tp 2458370.915687456993
(2018-Sep-09.41568746)
5.3007e-05 TDB
period 1294.831762897957
3.55
8.4539e-06
2.315e-08
d
yr
n .2780283974454609 1.8152e-09 deg/d
Q 2.730924876709415 1.1887e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      8217 days (22.50 yr)  
   first obs. used      1997-05-03  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 11:13:36  

Additional Information
 Earth MOID = .907258 au 
 Jupiter MOID = 2.28884 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 16.7   n/a MPO449699  

120247 (2004 FR139)          Discovered 2004-Mar-25 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ hide close-approach data ]
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
1923-Jul-04 11:14 < 00:01 Hebe 0.0278193710178476 0.0278010354752165 0.027837706965754 8.09308886733486 8.09308883972298 2423604.967999513 0.900794190762039 929.414040432749 45.4570623651451 10.4000182248714 17099.2280800751 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 11:13:50 2019-Dec-04 11:13
2080-Dec-27 13:21 00:03 Psych 0.0399830385599099 0.0399745271608914 0.0399915512812775 4.03193823927448 4.03193816422227 2481126.056302461 3.08134059488795 560.761947563034 65.9688712092487 -41.1998278644418 60204.978313105 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 11:13:50 2019-Dec-04 11:13
2154-Apr-28 22:38 < 00:01 Amphi 0.0475432885023745 0.0475368252589262 0.0475497684217745 5.30473133120583 5.30473130841184 2507910.443311484 0.753848015597966 1453.92296027556 45.1916525335656 77.2998609249758 153489.183898038 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 11:13:50 2019-Dec-04 11:13

Alternate Designations
 2004 FR139 = 1997 JM17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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