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 ]  
30777 (1987 SB3)
Classification: Main-belt Asteroid          SPK-ID: 2030777
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1908644071106225 3.5133e-08  
a 2.24539069912401 8.525e-09 au
q 1.816825534604 8.21e-08 au
i 6.065271009235449 4.3306e-06 deg
node 32.67428019701016 2.7613e-05 deg
peri 310.2583725933916 2.9514e-05 deg
M 329.2674210491047 1.1294e-05 deg
tp 2459305.413846767535
(2021-Mar-31.91384677)
3.8778e-05 TDB
period 1228.955919926535
3.36
6.9989e-06
1.916e-08
d
yr
n .2929315805090228 1.6682e-09 deg/d
Q 2.673955863644021 1.0152e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1428  
   data-arc span      15635 days (42.81 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52225  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:52  

Additional Information
 Earth MOID = .814822 au 
 Jupiter MOID = 2.74335 au 
 T_jup = 3.600 
[ 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 15.05   n/a E2021B10  
diameter diameter 3.574 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.152   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30777 (1987 SB3)          Discovered 1987-Sep-21 by Elst, E. W. at Smolyan
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1987 SB3 = 1977 UD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-21 21:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin