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305488 (2008 ER3)
Classification: Main-belt Asteroid          SPK-ID: 2305488
[ 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2683511497531577 4.7085e-08  
a 3.099623599720347 3.3497e-08 au
q 2.267836042933371 1.5176e-07 au
i 16.60815058064893 5.0591e-06 deg
node 135.5659244057541 1.9457e-05 deg
peri 312.746097821938 2.2087e-05 deg
M 142.3698612365216 1.2675e-05 deg
tp 2458212.225593720290
(2018-Apr-03.72559372)		 6.1187e-05 TDB
period 1993.250423902913
5.46		 3.2311e-05
8.846e-08		 d
yr
n .1806095188456535 2.9277e-09 deg/d
Q 3.931411156507323 4.2486e-08 au
   Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2001-12-19  
   last obs. used      2020-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:11:48  

Additional Information
 Earth MOID = 1.31761 au 
 Jupiter MOID = 1.43386 au 
 T_jup = 3.104 
[ 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 15.3   n/a MPO476360  

305488 (2008 ER3)          Discovered 2008-Mar-01 by LONEOS at Anderson Mesa
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ 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
1900-Aug-21 22:05 00:09 Jupiter 1.90305033518452 1.90304404116042 1.90305662928121 2.05041288538643 1.82044485556305 2415253.419876009 9.36909450775573 933.833061304719 125.366399435039 18.6423582273379 472782.001023448 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 19:11:49 2020-Nov-11 19:11
1961-Aug-20 11:39 00:03 Jupiter 1.45281626669634 1.45281505486925 1.45281747857348 3.75517118663016 3.59656342517665 2437531.985589641 2.51674718480524 468.285743935205 20.0925869115259 83.4861727114255 2555051.04364094 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 19:11:49 2020-Nov-11 19:11
1971-Aug-04 22:19 00:04 Jupiter 1.99414617315088 1.99414365915658 1.9941486872404 1.65924871489201 1.37970915155952 2441168.429882762 3.81130239730653 1061.76830882835 105.53074225058 48.1476328706932 1321056.18099644 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 19:11:49 2020-Nov-11 19:11
2032-Sep-13 09:18 < 00:01 Jupiter 1.42465225860473 1.42465171750146 1.42465279970808 3.75026784823091 3.58823288390094 2463488.887356922 0.79891875869945 127.724365232868 25.8384765864112 87.8746645874111 2526204.60640014 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 19:11:49 2020-Nov-11 19:11
2103-Oct-19 01:11 00:04 Jupiter 1.4111569833338 1.41115643727159 1.41115752940081 3.7592018430252 3.59598848274919 2489455.549454177 4.00432613622084 618.336880231345 25.867329952805 -89.1411423066312 2514542.10068793 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 19:11:49 2020-Nov-11 19:11
2174-Nov-25 05:26 00:08 Jupiter 1.4001878500219 1.40018657051528 1.40018912984226 3.77644226020209 3.61270623187419 2515425.726686631 7.91468708877972 1192.77034686811 27.439110113387 -86.96114923647 2506979.13818006 T 15 CATAB v2.0f-lin.ifort 2020-Nov-11 19:11:49 2020-Nov-11 19:11

Alternate Designations
 2008 ER3 = 2005 NS96 = 2006 WV136 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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