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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 ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701173561388928 1.2179e-08  
a 2.270200437867042 5.9121e-09 au
q 1.883999941471744 2.8945e-08 au
i 5.495966914084033 7.6252e-07 deg
node 127.2561548912423 9.1754e-06 deg
peri 183.0727040579457 1.1434e-05 deg
M 29.34749380784144 8.4307e-06 deg
tp 2459098.649480052758
(2020-Sep-06.14948005)
2.9142e-05 TDB
period 1249.380523634708
3.42
4.8805e-06
1.336e-08
d
yr
n .2881427981226129 1.1256e-09 deg/d
Q 2.65640093426234 6.9179e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3059  
   data-arc span      17777 days (48.67 yr)  
   first obs. used      1972-06-06  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41633  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:07:01  

Additional Information
 Earth MOID = .867547 au 
 Jupiter MOID = 2.59815 au 
 T_jup = 3.588 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456918.5 (2014-Sep-18.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704606029929431 1.2215e-08  
q 1.88292657466723 2.901e-08 au
tp 2456598.579271788468
(2013-Nov-02.07927179)
2.7935e-05 TDB
node 127.2932672417857 9.1718e-06 deg
peri 182.8367057970094 1.1413e-05 deg
i 5.496936260072228 7.6158e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3059  
   data-arc span      17777 days (48.67 yr)  
   first obs. used      1972-06-06  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41633  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:07:01  

Additional Information
 Jupiter MOID = 2.59815 au 
 T_jup = 3.588 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.492146831879867E-16 -3.495060608070166E-16 -3.069362257766991E-14 -5.886743615645938E-14 5.567611904816647E-14 -4.698367708945339E-15
q -3.495060608070166E-16 8.415781790348119E-16 6.228664068616062E-14 1.33082272362391E-13 -1.249388806288453E-13 1.064652633418436E-14
tp -3.069362257766991E-14 6.228664068616062E-14 7.803854811875143E-10 3.289449731626856E-12 1.805169350305667E-10 7.534277869365507E-13
node -5.886743615645938E-14 1.33082272362391E-13 3.289449731626856E-12 8.412183425358716E-11 -8.503339527471673E-11 6.657499057913483E-12
peri 5.567611904816647E-14 -1.249388806288453E-13 1.805169350305667E-10 -8.503339527471673E-11 1.302466401404521E-10 -6.61923921263796E-12
i -4.698367708945339E-15 1.064652633418436E-14 7.534277869365507E-13 6.657499057913483E-12 -6.61923921263796E-12 5.800018419147845E-13

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

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