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48913 (1998 OH2)
Classification: Main-belt Asteroid          SPK-ID: 2048913
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401666864070543 2.5557e-08  
a 2.42867151207685 7.1834e-09 au
q 2.088252673857828 6.3623e-08 au
i 1.705022510934806 3.5882e-06 deg
node 151.3965307279997 0.00010835 deg
peri 107.1054544955474 0.00010955 deg
M 334.7786784731898 1.4677e-05 deg
tp 2459097.353859778425
(2020-Sep-04.85385978)
5.6298e-05 TDB
period 1382.456882093548
3.78
6.1334e-06
1.679e-08
d
yr
n .2604059516524144 1.1553e-09 deg/d
Q 2.769090350295872 8.1902e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1466  
   data-arc span      10061 days (27.55 yr)  
   first obs. used      1992-12-02  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50429  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 21:50:24  

Additional Information
 Earth MOID = 1.07383 au 
 Jupiter MOID = 2.28115 au 
 T_jup = 3.495 
[ 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 15.0   n/a MPO381621  
diameter diameter 4.409 km 1.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.076   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

48913 (1998 OH2)          Discovered 1998-Jul-25 by Comba, P. G. at Prescott
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
1974-Feb-01 16:59 < 00:01 Hebe 0.0378457931611364 0.0378421907303387 0.0378493956708421 7.20794248674229 7.20794246395312 2442080.207863210 0.338182743645294 199.836371285718 32.5145540575798 -26.3802324373357 81407.3906500486 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 21:50:40 2020-Jun-23 21:50
1977-Nov-16 13:26 < 00:01 Hebe 0.0275515081735824 0.0275482890380954 0.0275547273907846 6.84428860132492 6.84428856835758 2443464.059485023 0.31997298474048 177.724235889422 32.1041210278049 25.896914129662 59811.8221679892 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 21:50:40 2020-Jun-23 21:50
1995-Jan-18 22:59 < 00:01 Amphi 0.046285720146118 0.0462848305198611 0.0462866098054314 4.53240262132373 4.53240259392077 2449736.457669599 0.303241787824008 96.1025221476487 30.630450021708 -69.391314152264 213018.211179231 T 30 CATAB v2.0f-lin.ifort 2020-Jun-23 21:50:40 2020-Jun-23 21:50
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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