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2682 Soromundi (1979 MF4)
Classification: Main-belt Asteroid          SPK-ID: 2002682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701173653231995 2.7761e-08  
a 2.270200437707945 6.1147e-09 au
q 1.883999920489495 6.2991e-08 au
i 5.49596863642279 3.1115e-06 deg
node 127.2561053290938 3.5454e-05 deg
peri 183.0727464820082 3.6847e-05 deg
M 29.34749906684896 1.0531e-05 deg
tp 2459098.649461812071
(2020-Sep-06.14946181)
3.6491e-05 TDB
period 1249.380523503372
3.42
5.0477e-06
1.382e-08
d
yr
n .2881427981529027 1.1641e-09 deg/d
Q 2.656400954926395 7.1549e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3013  
   data-arc span      17760 days (48.62 yr)  
   first obs. used      1972-06-06  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:04:48  

Additional Information
 Earth MOID = .867547 au 
 Jupiter MOID = 2.59815 au 
 T_jup = 3.588 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456858.5 (2014-Jul-20.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704904499072129 2.7815e-08  
q 1.882850046676022 6.3118e-08 au
tp 2456598.583502058925
(2013-Nov-02.08350206)
3.6424e-05 TDB
node 127.2930306855378 3.5436e-05 deg
peri 182.8341907765898 3.6817e-05 deg
i 5.496942005907687 3.1124e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3013  
   data-arc span      17760 days (48.62 yr)  
   first obs. used      1972-06-06  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:04:48  

Additional Information
 Jupiter MOID = 2.59815 au 
 T_jup = 3.588 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.736746840465623E-16 -1.750045185465061E-15 8.249244368475414E-14 -5.472442310560115E-15 3.730114690350461E-14 -1.846720354238481E-16
q -1.750045185465061E-15 3.983822361595445E-15 -2.1359672378228E-13 1.238883286070007E-14 -9.076861469843099E-14 4.560060783403673E-16
tp 8.249244368475414E-14 -2.1359672378228E-13 1.326690243465827E-9 -2.370756113754594E-12 3.755897275602496E-10 2.60232219855115E-13
node -5.472442310560115E-15 1.238883286070007E-14 -2.370756113754594E-12 1.255719048632104E-9 -1.250231373835564E-9 1.393214705456339E-11
peri 3.730114690350461E-14 -9.076861469843099E-14 3.755897275602496E-10 -1.250231373835564E-9 1.355527538794787E-9 -1.379394828584587E-11
i -1.846720354238481E-16 4.560060783403673E-16 2.60232219855115E-13 1.393214705456339E-11 -1.379394828584587E-11 9.687334185329149E-12

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 13.40   n/a E2021B10  
diameter diameter 5.344 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.385 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.199   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2682 Soromundi (1979 MF4)          Discovered 1979-Jun-25 by Helin, E. F. and Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 MF4 = 1972 LO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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