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 ]  
39474 (1978 VC7)
Classification: Jupiter Trojan          SPK-ID: 2039474
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08925037610926011 5.7421e-08  
a 5.267042970492568 1.2797e-07 au
q 4.796957404392471 3.8267e-07 au
i 13.05161380741563 6.0173e-06 deg
node 71.62551319645343 2.5077e-05 deg
peri 219.7936275145909 4.7606e-05 deg
M 297.4406911163496 4.3149e-05 deg
tp 2459767.752232216829
(2022-Jul-07.25223222)
0.00053595 TDB
period 4415.183104272514
12.09
0.00016091
4.405e-07
d
yr
n .08153682225582734 2.9716e-09 deg/d
Q 5.737128536592664 1.3939e-07 au
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      24392 days (66.78 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49603  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:21:09  

Additional Information
 Earth MOID = 3.79277 au 
 Jupiter MOID = .437357 au 
 T_jup = 2.940 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457457.5 (2016-Mar-10.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08749581403903746 5.7372e-08  
q 4.811139705023113 3.8332e-07 au
tp 2455351.225442521645
(2010-Jun-03.72544252)
0.00052861 TDB
node 71.61819118896983 2.5069e-05 deg
peri 219.8502985926963 4.8333e-05 deg
i 13.04978122806781 6.0164e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      963  
   data-arc span      24392 days (66.78 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-07-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49603  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:21:09  

Additional Information
 Jupiter MOID = .437357 au 
 T_jup = 2.940 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.291582576767351E-15 -2.129282265886928E-14 -6.165845169968947E-12 -1.237561977327033E-14 -5.813388480079109E-13 -7.716858560329341E-16
q -2.129282265886928E-14 1.46937489967615E-13 3.011928019802881E-11 9.060801298215453E-14 3.473684963816471E-12 7.748742942886026E-15
tp -6.165845169968947E-12 3.011928019802881E-11 2.794298308077935E-7 5.188533610899627E-11 2.177364212245248E-8 1.814828580835217E-11
node -1.237561977327033E-14 9.060801298215453E-14 5.188533610899627E-11 6.284424776340132E-10 -6.068643776359154E-10 -4.769073669811374E-11
peri -5.813388480079109E-13 3.473684963816471E-12 2.177364212245248E-8 -6.068643776359154E-10 2.336078224900298E-9 4.803778020804343E-11
i -7.716858560329341E-16 7.748742942886026E-15 1.814828580835217E-11 -4.769073669811374E-11 4.803778020804343E-11 3.619742041115625E-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 11.7   n/a MPO319561  
diameter diameter 26.068 km 0.552 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.060   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

39474 (1978 VC7)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1978 VC7 = 1978 WA14 = 2000 SM339 = 2001 WJ25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 02:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin