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3381 Mikkola (1941 UG)
Classification: Main-belt Asteroid          SPK-ID: 2003381
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2068435992907626 3.5983e-08  
a 2.452320704186514 8.0925e-09 au
q 1.945073863117318 8.8306e-08 au
i 4.215205995922236 2.908e-06 deg
node 257.7859947409687 5.7715e-05 deg
peri 134.8796609527584 5.8228e-05 deg
M 197.4578469414995 8.1585e-06 deg
tp 2459833.826749424774
(2022-Sep-11.32674942)
3.2614e-05 TDB
period 1402.698472382484
3.84
6.9433e-06
1.901e-08
d
yr
n .2566481728525304 1.2704e-09 deg/d
Q 2.959567545255711 9.7664e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2674  
   data-arc span      28777 days (78.79 yr)  
   first obs. used      1941-09-26  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:06:01  

Additional Information
 Earth MOID = .953015 au 
 Jupiter MOID = 2.48813 au 
 T_jup = 3.462 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456936.5 (2014-Oct-06.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049026876545139 3.584e-08  
q 1.950999618943288 8.7829e-08 au
tp 2457025.593653622174
(2015-Jan-03.09365362)
3.1979e-05 TDB
node 258.0003741535556 5.7802e-05 deg
peri 134.4210862755615 5.8331e-05 deg
i 4.209913129155393 2.9035e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2674  
   data-arc span      28777 days (78.79 yr)  
   first obs. used      1941-09-26  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:06:01  

Additional Information
 Jupiter MOID = 2.48813 au 
 T_jup = 3.462 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.284505021155633E-15 -3.139329500302064E-15 -4.917524429471963E-13 -8.472427452470019E-16 -1.404827195525108E-13 -7.607922511942465E-16
q -3.139329500302064E-15 7.713989840146473E-15 1.179958656534777E-12 3.34766355850611E-15 3.357243832215468E-13 1.887801206574145E-15
tp -4.917524429471963E-13 1.179958656534777E-12 1.022629452159322E-9 1.349613941771088E-12 2.750054065509704E-10 3.362256649725254E-13
node -8.472427452470019E-16 3.34766355850611E-15 1.349613941771088E-12 3.341036513122847E-9 -3.331406438042399E-9 -2.487850613993391E-11
peri -1.404827195525108E-13 3.357243832215468E-13 2.750054065509704E-10 -3.331406438042399E-9 3.402548140750702E-9 2.491332580707535E-11
i -7.607922511942465E-16 1.887801206574145E-15 3.362256649725254E-13 -2.487850613993391E-11 2.491332580707535E-11 8.430506293326777E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.28   n/a E2021B10  
diameter diameter 3.810 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.639   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3381 Mikkola (1941 UG)          Discovered 1941-Oct-15 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1941 UG = 1949 XG = 1974 HG = 1977 BE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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