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48916 (1998 OR6)
Classification: Main-belt Asteroid          SPK-ID: 2048916
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160959098527256 3.1591e-08  
a 2.422511986049778 9.1568e-09 au
q 2.141268252900196 8.0088e-08 au
i 7.119914176874738 4.815e-06 deg
node 183.5951512799716 2.6447e-05 deg
peri 104.8779197062613 3.5308e-05 deg
M 308.1430210274655 2.2118e-05 deg
tp 2459198.881897717390
(2020-Dec-15.38189772)
8.451e-05 TDB
period 1377.200997691862
3.77
7.8085e-06
2.138e-08
d
yr
n .2613997525439982 1.4821e-09 deg/d
Q 2.70375571919936 1.022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      8058 days (22.06 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:12  

Additional Information
 Earth MOID = 1.1387 au 
 Jupiter MOID = 2.45633 au 
 T_jup = 3.493 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457159.5 (2015-May-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163268416384997 3.1597e-08  
q 2.141219924888925 8.0054e-08 au
tp 2457819.073437610244
(2017-Mar-06.57343761)
8.5158e-05 TDB
node 183.6374491028945 2.6478e-05 deg
peri 104.3340872622959 3.5258e-05 deg
i 7.114251424273289 4.812e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      8058 days (22.06 yr)  
   first obs. used      1998-07-26  
   last obs. used      2020-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53746  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:12  

Additional Information
 Jupiter MOID = 2.45633 au 
 T_jup = 3.493 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.983710047326691E-16 -2.51859237646678E-15 1.733119848739837E-13 1.990869052887752E-15 9.471265590938654E-14 -1.669243454831669E-16
q -2.51859237646678E-15 6.408677014876219E-15 -5.181216313478624E-13 -5.261883184725057E-15 -2.661401614362241E-13 5.155343943241235E-16
tp 1.733119848739837E-13 -5.181216313478624E-13 7.251887631583863E-9 -2.61355769775527E-11 1.985406026991001E-9 4.92538995478998E-12
node 1.990869052887752E-15 -5.261883184725057E-15 -2.61355769775527E-11 7.011104120059006E-10 -7.022408882004022E-10 2.995844193884394E-11
peri 9.471265590938654E-14 -2.661401614362241E-13 1.985406026991001E-9 -7.022408882004022E-10 1.243104427521183E-9 -2.847749627879264E-11
i -1.669243454831669E-16 5.155343943241235E-16 4.92538995478998E-12 2.995844193884394E-11 -2.847749627879264E-11 2.315526160708128E-11

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 MPO280003  

48916 (1998 OR6)          Discovered 1998-Jul-26 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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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
2009-Dec-06 07:08 < 00:01 Iris 0.0215382676402061 0.0215372065846859 0.0215393287033915 6.35290708850674 6.35290704649315 2455171.797280827 0.255354670836935 61.7951142250798 40.9025433891397 -43.5981927113483 66141.0769204322 T 27 CATAB v2.0f-lin.ifort 2020-Nov-12 23:35:15 2020-Nov-12 23:35

Alternate Designations
 1998 OR6 = 2001 FJ45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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