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
JPL Small-Body Database Browser
Search: [ help ]  
2890 Vilyujsk (1978 SY7)
Classification: Main-belt Asteroid          SPK-ID: 2002890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1607443644143382 3.3158e-08  
a 2.260095011569639 6.7211e-09 au
q 1.896797475418861 7.4167e-08 au
i 6.618292203296082 4.5344e-06 deg
node 356.7222743457851 3.0088e-05 deg
peri 51.30167874985474 3.335e-05 deg
M 69.81812214227212 1.3128e-05 deg
tp 2458759.812168089715
(2019-Oct-03.31216809)
4.5256e-05 TDB
period 1241.047694051926
3.40
5.5359e-06
1.516e-08
d
yr
n .2900774899509522 1.2939e-09 deg/d
Q 2.623392547720417 7.8014e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2110  
   data-arc span      27612 days (75.60 yr)  
   first obs. used      1944-09-20  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:46:36  

Additional Information
 Earth MOID = .913991 au 
 Jupiter MOID = 2.77728 au 
 T_jup = 3.595 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO365280  
diameter diameter 7.983 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.45 h n/a LCDB (Rev. 2019-August); 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:
[Koff, R.A. (2003) Minor Planet Bull. 30, 38-39.]
[Ruthroff, J.C. (2013) Minor Planet Bull. 40, 90-91.]
[Waller, E.B. (2013) Minor Planet Bull. 40, 109-110.]
geometric albedo albedo 0.218   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2890 Vilyujsk (1978 SY7)          Discovered 1978-Sep-26 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1978 SY7 = 1944 SC = 1956 EL = 1961 TR1 = 1983 BP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-02 20:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin