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2798 Vergilius (2009 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2002798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05766676439346836 3.7107e-08  
a 2.418194707834233 8.5295e-09 au
q 2.278745243360024 8.9684e-08 au
i 5.321187564097213 4.2502e-06 deg
node 219.4355461292323 3.8383e-05 deg
peri 174.2064452778294 5.057e-05 deg
M 292.409319987552 3.4187e-05 deg
tp 2459258.381175671781
(2021-Feb-12.88117567)
0.00013093 TDB
period 1373.521071614362
3.76
7.2671e-06
1.99e-08
d
yr
n .2621000925576449 1.3867e-09 deg/d
Q 2.557644172308442 9.0214e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2321  
   data-arc span      21808 days (59.71 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:50  

Additional Information
 Earth MOID = 1.2848 au 
 Jupiter MOID = 2.67443 au 
 T_jup = 3.507 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2   n/a MPO492783  
diameter diameter 4.839 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.225   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2798 Vergilius (2009 P-L)          Discovered 1960-Sep-24 by PLS at Palomar
These planets have all been discovered as a result of the Palomar survey of faint minor planets and subsequently identified with planets observed at other oppositions. In Sept. and Oct. 1960, T. Gehrels exposed 130 plates with the 122 cm Schmidt camera at Palomar. In the following years C. J. van Houten and I. van Houten-Groeneveld measured these plates astrometrically and photometrically at Leiden. P. Herget, Cincinnati, computed the orbits of the planets found on the NORC computer, Dahlgren, Virginia, USA.
Note: "planet" implies "minor planet"
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 2009 P-L = 1979 UY4 = 1979 WB7 = 1981 EN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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