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JPL Small-Body Database Browser
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277791 (2006 EM12)
Classification: Main-belt Asteroid          SPK-ID: 2277791
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1191271475130617 7.1061e-08  
a 2.730812839930184 3.6068e-08 au
q 2.405498895917258 1.9709e-07 au
i 14.36339924379174 7.6026e-06 deg
node 173.2570693528795 2.2288e-05 deg
peri 202.4968675102802 3.4597e-05 deg
M 206.9769116543764 2.2372e-05 deg
tp 2459701.133329540299
(2022-May-01.63332954)
0.00010105 TDB
period 1648.300275216091
4.51
3.2655e-05
8.94e-08
d
yr
n .2184068069471166 4.327e-09 deg/d
Q 3.05612678394311 4.0364e-08 au
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      5699 days (15.60 yr)  
   first obs. used      2003-07-23  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:04:24  

Additional Information
 Earth MOID = 1.41045 au 
 Jupiter MOID = 2.4138 au 
 T_jup = 3.299 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457271.5 (2015-Sep-06.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184263103123862 7.1038e-08  
q 2.408065419554522 1.9709e-07 au
tp 2458054.665808604428
(2017-Oct-28.16580860)
0.00010807 TDB
node 173.2701954543949 2.2288e-05 deg
peri 202.9420167966224 3.4742e-05 deg
i 14.36164231584543 7.6017e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      183  
   data-arc span      5699 days (15.60 yr)  
   first obs. used      2003-07-23  
   last obs. used      2019-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:04:24  

Additional Information
 Jupiter MOID = 2.4138 au 
 T_jup = 3.299 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.046350047352067E-15 -1.381430987329291E-14 -2.289322968461684E-15 2.814905981161184E-14 2.246596067446243E-14 6.136238358742658E-15
q -1.381430987329291E-14 3.884318012397988E-14 -1.194400615757343E-12 -7.560845492922236E-14 -4.454663076278824E-13 -1.385820416262736E-14
tp -2.289322968461684E-15 -1.194400615757343E-12 1.16794237533851E-8 -6.414685642216364E-12 2.887348948532315E-9 6.731576007761783E-14
node 2.814905981161184E-14 -7.560845492922236E-14 -6.414685642216364E-12 4.967489108424466E-10 -4.821507120535622E-10 3.505450077476099E-11
peri 2.246596067446243E-14 -4.454663076278824E-13 2.887348948532315E-9 -4.821507120535622E-10 1.206974968984158E-9 -3.429705948881121E-11
i 6.136238358742658E-15 -1.385820416262736E-14 6.731576007761783E-14 3.505450077476099E-11 -3.429705948881121E-11 5.778596488616621E-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 16.5   n/a MPO423067  
diameter diameter 3.553 km 0.824 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

277791 (2006 EM12)          Discovered 2006-Mar-02 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ 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
1995-Jan-09 07:45 00:01 Amphi 0.0381727554286518 0.0381708628322836 0.0381746490941334 7.0663564489563 7.06635642764431 2449726.822571962 1.20276718730811 418.828299934615 59.0002416951992 79.7653729026571 95262.2849345789 T 15 CATAB v2.0e-lin.ifort 2019-Jul-14 07:04:26 2019-Jul-14 07:04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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