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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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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08469800643687063 3.3672e-08  
a 2.24709367453068 5.2561e-09 au
q 2.056769320021029 7.5296e-08 au
i 3.078847620615702 3.8188e-06 deg
node 191.0074630614466 5.6303e-05 deg
peri 349.1168919325818 5.9267e-05 deg
M 219.649213212608 1.8824e-05 deg
tp 2459480.169984832028
(2021-Sep-22.66998483)
6.4612e-05 TDB
period 1230.354303614366
3.37
4.3168e-06
1.182e-08
d
yr
n .2925986432870932 1.0266e-09 deg/d
Q 2.43741802904033 5.7013e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3012  
   data-arc span      21723 days (59.47 yr)  
   first obs. used      1961-05-11  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44249  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:14:49  

Additional Information
 Earth MOID = 1.05963 au 
 Jupiter MOID = 2.52172 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 12.8   n/a MPO347532  
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. 2019-August); 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.]
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

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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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