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 ]  
102791 (1999 VR157)
Classification: Main-belt Asteroid          SPK-ID: 2102791
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1679551667049498 3.7555e-08  
a 2.357756345730031 8.3265e-09 au
q 1.961758985633291 8.9248e-08 au
i 1.904122966357755 4.4892e-06 deg
node 307.7003379892359 0.00012488 deg
peri 88.13600528183811 0.00012573 deg
M 242.5568027647168 1.4163e-05 deg
tp 2459431.892087918407
(2021-Aug-05.39208792)
5.2948e-05 TDB
period 1322.351190248162
3.62
7.0049e-06
1.918e-08
d
yr
n .2722423533588227 1.4421e-09 deg/d
Q 2.753753705826772 9.7249e-09 au
  Orbit Determination Parameters
   # obs. used (total)      849  
   data-arc span      8144 days (22.30 yr)  
   first obs. used      1997-02-08  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:40:53  

Additional Information
 Earth MOID = .969721 au 
 Jupiter MOID = 2.67042 au 
 T_jup = 3.533 
[ 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 16.2   n/a MPO338001  
diameter diameter 3.152 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.065   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

102791 (1999 VR157)          Discovered 1999-Nov-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-01 11:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin