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JPL Small-Body Database Browser
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108863 (2001 OR98)
Classification: Main-belt Asteroid          SPK-ID: 2108863
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2421214335784601 5.3312e-08  
a 2.661391456892859 1.4048e-08 au
q 2.017011542036494 1.4285e-07 au
i 2.852495778410947 3.9683e-06 deg
node 272.8171387907552 0.00011755 deg
peri 66.36720339635104 0.00011782 deg
M 125.2137007811722 9.8089e-06 deg
tp 2458448.916945616607
(2018-Nov-26.41694562)
4.0989e-05 TDB
period 1585.848020937015
4.34
1.2556e-05
3.438e-08
d
yr
n .227007881743479 1.7973e-09 deg/d
Q 3.305771371749225 1.7449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      14794 days (40.50 yr)  
   first obs. used      1979-07-24  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58205  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:15:06  

Additional Information
 Earth MOID = 1.01023 au 
 Jupiter MOID = 2.10831 au 
 T_jup = 3.341 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456595.5 (2013-Oct-30.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2448959215278577 5.3757e-08  
q 2.008022798616865 1.4448e-07 au
tp 2456861.283421019180
(2014-Jul-22.78342102)
3.5694e-05 TDB
node 273.2340766865228 0.00011765 deg
peri 65.53551750552168 0.0001179 deg
i 2.85246348632117 3.972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      14794 days (40.50 yr)  
   first obs. used      1979-07-24  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58205  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:15:06  

Additional Information
 Jupiter MOID = 2.10831 au 
 T_jup = 3.341 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.889802162176538E-15 -7.746144817634667E-15 5.425511146172921E-13 -1.761221319204151E-14 8.010675206237727E-14 -3.411753709756377E-15
q -7.746144817634667E-15 2.087425996103882E-14 -1.374588400349741E-12 4.775064975557644E-14 -2.033046714365025E-13 9.418807312376582E-15
tp 5.425511146172921E-13 -1.374588400349741E-12 1.274068998102264E-9 -5.622854126667871E-12 3.205427163734573E-10 -1.39071653657997E-12
node -1.761221319204151E-14 4.775064975557644E-14 -5.622854126667871E-12 1.384197497614372E-8 -1.382573621941318E-8 4.714416321310175E-11
peri 8.010675206237727E-14 -2.033046714365025E-13 3.205427163734573E-10 -1.382573621941318E-8 1.390130796575582E-8 -4.735164309805252E-11
i -3.411753709756377E-15 9.418807312376582E-15 -1.39071653657997E-12 4.714416321310175E-11 -4.735164309805252E-11 1.577659409163558E-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 15.9   n/a MPO453547  

108863 (2001 OR98)          Discovered 2001-Jul-26 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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
1998-Nov-27 08:44 00:01 Hygie 0.0496818943050842 0.0496781582255495 0.0496856303849251 4.045962329438 4.04596213722513 2451144.864002919 1.07783390241744 186.036985927718 89.7374761228326 2.00481956386545 39960.8702499721 T 23 CATAB v2.0f-lin.ifort 2020-Feb-24 03:15:07 2020-Feb-24 03:15

Alternate Designations
 2001 OR98 = 1979 OU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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