Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08469801265327508 3.4765e-08  
a 2.247093675430076 5.373e-09 au
q 2.056769306875406 7.7528e-08 au
i 3.07884759029025 3.8973e-06 deg
node 191.0074652403421 5.6817e-05 deg
peri 349.1168880410026 5.9781e-05 deg
M 219.649214203867 1.8892e-05 deg
tp 2459480.169981732232
(2021-Sep-22.66998173)
6.4842e-05 TDB
period 1230.354304353038
3.37
4.4128e-06
1.208e-08
d
yr
n .2925986431114248 1.0494e-09 deg/d
Q 2.437418043984747 5.8281e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2823  
   data-arc span      21426 days (58.66 yr)  
   first obs. used      1961-05-11  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:17:40  

Additional Information
 Earth MOID = 1.05963 au 
 Jupiter MOID = 2.52172 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456296.5 (2013-Jan-04.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0847461268978144 3.4764e-08  
q 2.056604499830071 7.7527e-08 au
tp 2455789.727920367545
(2011-Aug-16.22792037)
6.3942e-05 TDB
node 191.0914054511151 5.6816e-05 deg
peri 349.4163158884305 5.9775e-05 deg
i 3.078469471946927 3.8979e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2823  
   data-arc span      21426 days (58.66 yr)  
   first obs. used      1961-05-11  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45339  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:17:40  

Additional Information
 Jupiter MOID = 2.52172 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.208569912744245E-15 -2.689812203485098E-15 1.180942255744701E-13 -2.524614106434063E-15 3.012619549183452E-14 -3.457374549412977E-16
q -2.689812203485098E-15 6.010400017428513E-15 -2.811564181971322E-13 5.558089630429458E-15 -7.075073751495129E-14 7.694848705813321E-16
tp 1.180942255744701E-13 -2.811564181971322E-13 4.088564505057953E-9 1.848096537238755E-12 1.194331305306278E-9 -1.810952128138392E-13
node -2.524614106434063E-15 5.558089630429458E-15 1.848096537238755E-12 3.228013271180169E-9 -3.222327578389385E-9 -6.536652701559416E-12
peri 3.012619549183452E-14 -7.075073751495129E-14 1.194331305306278E-9 -3.222327578389385E-9 3.573008090796597E-9 6.482060365093522E-12
i -3.457374549412977E-16 7.694848705813321E-16 -1.810952128138392E-13 -6.536652701559416E-12 6.482060365093522E-12 1.519353811099178E-11

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

[ 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-21 01:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin