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1855 Korolev (1969 TU1)
Classification: Main-belt Asteroid          SPK-ID: 2001855
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08459963197778625 1.6974e-08  
a 2.247512586722882 4.7995e-09 au
q 2.057373849020684 3.7641e-08 au
i 3.078592785688086 6.8488e-07 deg
node 191.0025100262258 2.4776e-05 deg
peri 349.0113522061392 3.1858e-05 deg
M 278.2697586176223 1.0776e-05 deg
tp 2459479.903541475521
(2021-Sep-22.40354148)
3.7024e-05 TDB
period 1230.69837100561
3.37
3.9422e-06
1.079e-08
d
yr
n .2925168412353078 9.3699e-10 deg/d
Q 2.43765132442508 5.2055e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3232  
   data-arc span      21857 days (59.84 yr)  
   first obs. used      1961-05-11  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43143  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:02:29  

Additional Information
 Earth MOID = 1.05974 au 
 Jupiter MOID = 2.52048 au 
 T_jup = 3.623 
[ 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 12.83   n/a E2021B10  
diameter diameter 6.789 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.6568 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brinsfield, J. (2008) Minor Planet Bull. 35, 119-122.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.319   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1855 Korolev (1969 TU1)          Discovered 1969-Oct-08 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1969 TU1 = 1961 JD = 1964 DD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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