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 ]  
46925 (1998 SS27)
Classification: Main-belt Asteroid          SPK-ID: 2046925
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04889662608458818 5.1444e-08  
a 2.610536313392432 1.4144e-08 au
q 2.482889895396243 1.3016e-07 au
i 27.61536727090199 4.9063e-06 deg
node 304.8889601134065 1.1426e-05 deg
peri 351.1567923101322 6.4457e-05 deg
M 130.3810332026067 6.5356e-05 deg
tp 2458442.537575766891
(2018-Nov-20.03757577)
0.00027903 TDB
period 1540.611144044097
4.22
1.252e-05
3.428e-08
d
yr
n .2336735011892759 1.899e-09 deg/d
Q 2.738182731388621 1.4835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      15981 days (43.75 yr)  
   first obs. used      1976-05-05  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:36  

Additional Information
 Earth MOID = 1.46863 au 
 Jupiter MOID = 2.52741 au 
 T_jup = 3.247 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457348.5 (2015-Nov-22.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04966101436253338 5.1511e-08  
q 2.480493498306922 1.3051e-07 au
tp 2456903.165097896424
(2014-Sep-02.66509790)
0.00027379 TDB
node 304.9548507551272 1.1425e-05 deg
peri 351.2724678925274 6.3588e-05 deg
i 27.61428600234699 4.9086e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      15981 days (43.75 yr)  
   first obs. used      1976-05-05  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40639  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:37:36  

Additional Information
 Jupiter MOID = 2.52741 au 
 T_jup = 3.247 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.653366158709424E-15 -6.691181550550435E-15 6.862690880708983E-12 -1.170889840536696E-14 1.497404981476769E-12 -1.131816083828881E-14
q -6.691181550550435E-15 1.703280968819339E-14 -1.760905681104492E-11 3.218383314832166E-14 -3.839797042509407E-12 3.037591646757611E-14
tp 6.862690880708983E-12 -1.760905681104492E-11 7.495860786592101E-8 -7.640763478863806E-11 1.715824527766104E-8 -1.233958965114836E-10
node -1.170889840536696E-14 3.218383314832166E-14 -7.640763478863806E-11 1.30522938045014E-10 -1.322588413364873E-10 2.111642348850156E-11
peri 1.497404981476769E-12 -3.839797042509407E-12 1.715824527766104E-8 -1.322588413364873E-10 4.043455962203056E-9 -4.680621359534049E-11
i -1.131816083828881E-14 3.037591646757611E-14 -1.233958965114836E-10 2.111642348850156E-11 -4.680621359534049E-11 2.409393042409253E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0   n/a MPO502468  
diameter diameter 16.091 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46925 (1998 SS27)          Discovered 1998-Sep-25 by CSS at Catalina
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-10 00:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin