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469310 (1999 RE212)
Classification: Main-belt Asteroid          SPK-ID: 2469310
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3340973238211307 5.4568e-08  
a 2.621023954001119 9.8448e-09 au
q 1.745346865298267 1.4386e-07 au
i 17.33015719824104 6.4408e-06 deg
node 200.7967742270372 1.7848e-05 deg
peri 182.6642138345914 2.3759e-05 deg
M 308.9256941878258 1.0028e-05 deg
tp 2459220.389698463359
(2021-Jan-05.88969846)
4.364e-05 TDB
period 1549.904402771937
4.24
8.7323e-06
2.391e-08
d
yr
n .232272390062352 1.3086e-09 deg/d
Q 3.496701042703971 1.3134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      7658 days (20.97 yr)  
   first obs. used      1999-08-11  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-26 01:42:50  

Additional Information
 Earth MOID = .748933 au 
 Jupiter MOID = 1.96065 au 
 T_jup = 3.262 
[ 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 16.8   n/a MPO472611  

469310 (1999 RE212)          Discovered 1999-Aug-11 by LINEAR at Socorro
Reference: Last Updated: 2016-08-22

[ 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
1934-Jan-16 21:06 00:01 Jupiter 1.99732802852107 1.99732723997013 1.99732881708315 3.88579157650775 3.77507887817063 2427454.379468959 1.26003261616225 307.305346314581 23.899688542641 84.1785463040519 2511271.25002855 T 12 CATAB v2.0f-lin.ifort 2020-Aug-26 01:43:04 2020-Aug-26 01:43
1993-May-11 21:33 < 00:01 Jupiter 1.99768405528558 1.99768348120361 1.99768462936924 3.89594897833102 3.78555332285796 2449119.397645816 0.535223498690773 175.916688809672 23.5622823763359 84.9908048833931 2518099.12212462 T 12 CATAB v2.0f-lin.ifort 2020-Aug-26 01:43:04 2020-Aug-26 01:43
2052-Sep-04 07:43 < 00:01 Jupiter 1.99827121324409 1.99827066880278 1.9982717576871 3.90491920299305 3.79481734369637 2470784.821183406 0.605569969769636 187.595060868233 22.9115155738339 85.6962734577712 2524723.03161251 T 12 CATAB v2.0f-lin.ifort 2020-Aug-26 01:43:04 2020-Aug-26 01:43
2111-Dec-30 09:42 00:01 Jupiter 1.99945855603474 1.99945781446333 1.99945929761865 3.91237180024781 3.80255193493198 2492449.904429771 1.34962182090915 327.368164665739 22.8795569849425 84.8173897022368 2539795.50121602 T 12 CATAB v2.0f-lin.ifort 2020-Aug-26 01:43:04 2020-Aug-26 01:43
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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