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 ]  
102820 (1999 VO181)
Classification: Main-belt Asteroid          SPK-ID: 2102820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1516350602622267 6.8281e-08  
a 2.667729560538868 1.7411e-08 au
q 2.263208227863233 1.8444e-07 au
i 11.11538953743603 5.7511e-06 deg
node 55.2577168947338 3.4563e-05 deg
peri 100.8589399808238 3.8556e-05 deg
M 216.9075165951317 1.8548e-05 deg
tp 2459833.094554116320
(2022-Sep-10.59455412)
8.502e-05 TDB
period 1591.516437921624
4.36
1.5581e-05
4.266e-08
d
yr
n .2261993601964472 2.2145e-09 deg/d
Q 3.072250893214503 2.0051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      362  
   data-arc span      7670 days (21.00 yr)  
   first obs. used      1999-11-09  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:29:21  

Additional Information
 Earth MOID = 1.30298 au 
 Jupiter MOID = 2.00282 au 
 T_jup = 3.339 
[ 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 16.0   n/a MPO390433  
diameter diameter 3.514 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102820 (1999 VO181)          Discovered 1999-Nov-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 VO181 = 2003 UE156 
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-09 01:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin