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12300 (1991 RX10)
Classification: Main-belt Asteroid          SPK-ID: 2012300
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 .101575501226664 6.6598e-08  
a 2.434675059912548 1.1718e-08 au
q 2.187371720377873 1.6208e-07 au
i 12.76722868115093 6.393e-06 deg
node 1.279897081634308 1.6691e-05 deg
peri 345.8584107125233 2.9246e-05 deg
M 217.9853342798938 2.8741e-05 deg
tp 2459547.882151758028
(2021-Nov-29.38215176)
0.00011317 TDB
period 1387.586089321696
3.80
1.0018e-05
2.743e-08
d
yr
n .2594433619437491 1.8731e-09 deg/d
Q 2.681978399447223 1.2908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1468  
   data-arc span      20411 days (55.88 yr)  
   first obs. used      1964-08-08  
   last obs. used      2020-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47519  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:53:54  

Additional Information
 Earth MOID = 1.18362 au 
 Jupiter MOID = 2.74481 au 
 T_jup = 3.465 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456657.5 (2013-Dec-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012408773380648 6.6372e-08  
q 2.188762350827866 1.6154e-07 au
tp 2456768.324451817321
(2014-Apr-20.82445182)
0.00010259 TDB
node 1.317361359617024 1.6702e-05 deg
peri 345.0023252093139 2.9392e-05 deg
i 12.76343734330377 6.3903e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1468  
   data-arc span      20411 days (55.88 yr)  
   first obs. used      1964-08-08  
   last obs. used      2020-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47519  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:53:54  

Additional Information
 Jupiter MOID = 2.74481 au 
 T_jup = 3.465 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.405234355615956E-15 -1.069852205486305E-14 2.842543062659234E-12 6.321467575481373E-15 5.955225382890104E-13 1.878237344613663E-15
q -1.069852205486305E-14 2.609486753238171E-14 -6.37661930429139E-12 -1.623344966444075E-14 -1.323140737924453E-12 -4.658102971526892E-15
tp 2.842543062659234E-12 -6.37661930429139E-12 1.052510057748366E-8 7.853017014498609E-13 2.486027560965461E-9 -9.366251949593824E-12
node 6.321467575481373E-15 -1.623344966444075E-14 7.853017014498609E-13 2.789451322330756E-10 -2.713795999875061E-10 -8.660158609458248E-12
peri 5.955225382890104E-13 -1.323140737924453E-12 2.486027560965461E-9 -2.713795999875061E-10 8.63885204681341E-10 6.103379455010597E-12
i 1.878237344613663E-15 -4.658102971526892E-15 -9.366251949593824E-12 -8.660158609458248E-12 6.103379455010597E-12 4.083614893955081E-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 14.0   n/a MPO358749  
diameter diameter 4.072 km 0.212 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.244   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12300 (1991 RX10)          Discovered 1991-Sep-10 by Holt, H. E. at Palomar
Reference: 19991123/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
1948-Jan-13 02:45 00:02 Amphi 0.0451735655409659 0.0451652251760249 0.0451819059172785 2.57817593450063 2.57817588514052 2432563.614418793 1.54473348150149 416.783952083175 39.07116906537 -4.82150390091554 21706.3997570633 T 27 CATAB v2.0f-lin.ifort 2020-Nov-13 02:53:58 2020-Nov-13 02:53

Alternate Designations
 1991 RX10 = 1975 LE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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