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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
278513 Schwope (2008 CE120)
Classification: Main-belt Asteroid          SPK-ID: 2278513
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2096345821521094 4.9947e-08  
a 2.390562279750531 1.3719e-08 au
q 1.889417755126434 1.2583e-07 au
i 9.348486112693855 4.5001e-06 deg
node 149.6177427591269 2.7956e-05 deg
peri 241.6212371100067 2.9657e-05 deg
M 308.1597804630093 1.0997e-05 deg
tp 2459590.907426833390
(2022-Jan-11.40742683)
4.208e-05 TDB
period 1350.045857928537
3.70
1.1621e-05
3.182e-08
d
yr
n .2666576086181038 2.2954e-09 deg/d
Q 2.891706804374627 1.6595e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9531 days (26.09 yr)  
   first obs. used      1995-07-03  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:56:25  

Additional Information
 Earth MOID = .913493 au 
 Jupiter MOID = 2.60372 au 
 T_jup = 3.485 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457822.5 (2017-Mar-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2098829344304822 4.9815e-08  
q 1.887704310000318 1.2531e-07 au
tp 2458243.067415481949
(2018-May-04.56741548)
3.7608e-05 TDB
node 149.6406356489767 2.798e-05 deg
peri 241.9606332984405 2.9688e-05 deg
i 9.345896945481615 4.4989e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9531 days (26.09 yr)  
   first obs. used      1995-07-03  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:56:25  

Additional Information
 Jupiter MOID = 2.60372 au 
 T_jup = 3.485 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.481522997522403E-15 -6.22648201163434E-15 -3.469357488941189E-13 -4.103806695303606E-14 -5.980190690407474E-14 -4.348682993150582E-15
q -6.22648201163434E-15 1.570258713710111E-14 9.318949000429451E-13 1.021414238182053E-13 1.597205802882646E-13 1.123525394730766E-14
tp -3.469357488941189E-13 9.318949000429451E-13 1.414362714343616E-9 3.276112255805922E-12 3.925130733672861E-10 -2.765720460425538E-12
node -4.103806695303606E-14 1.021414238182053E-13 3.276112255805922E-12 7.828714449690115E-10 -7.708582663355161E-10 1.392489844036827E-11
peri -5.980190690407474E-14 1.597205802882646E-13 3.925130733672861E-10 -7.708582663355161E-10 8.813687495596729E-10 -1.448089809341359E-11
i -4.348682993150582E-15 1.123525394730766E-14 -2.765720460425538E-12 1.392489844036827E-11 -1.448089809341359E-11 2.024024646278209E-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 17.05   n/a MPCxxxxx  
diameter diameter 2.447 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

278513 Schwope           Discovered 2008 Feb. 14 by B. Thinius at the Inastars Observatory, Potsdam.
Axel Schwope (b. 1959) is a German astronomer at the Leibniz Institute for Astrophysics in Potsdam. His research focuses on compact X-ray emitting objects. The name acknowledges the interaction between a professional and an amateur astronomer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120831/MPCPages.arcLast Updated: 2012-09-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-26 08:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin