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 ]  
4164 Shilov (1969 UR)
Classification: Main-belt Asteroid          SPK-ID: 2004164
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1506788309327371 3.3018e-08  
a 2.635387621677416 9.2154e-09 au
q 2.238290495788456 8.9802e-08 au
i 12.80889365318382 4.4382e-06 deg
node 218.0673165755028 1.4292e-05 deg
peri 221.2183734540532 2.0161e-05 deg
M 269.1941394707029 1.4462e-05 deg
tp 2459394.663637489403
(2021-Jun-29.16363749)
6.3287e-05 TDB
period 1562.66246109086
4.28
8.1965e-06
2.244e-08
d
yr
n .2303760466279403 1.2084e-09 deg/d
Q 3.032484747566376 1.0604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2644  
   data-arc span      18643 days (51.04 yr)  
   first obs. used      1969-10-16  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39212  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:53:52  

Additional Information
 Earth MOID = 1.2686 au 
 Jupiter MOID = 2.32996 au 
 T_jup = 3.346 
[ 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 12.2   n/a MPO448955  
diameter diameter 10.486 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.5 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Angeli, C.A.; Barucci, M.A. (1996) Planet. Space Sci. 44, 181-186.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 12-19.]
geometric albedo albedo 0.234   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4164 Shilov (1969 UR)          Discovered 1969-Oct-16 by Chernykh, L. I. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1969 UR = 1982 VA13 = 1984 FQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-27 17:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin