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2413 van de Hulst (6816 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2002413
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155971443913306 1.765e-08  
a 3.013863000558265 1.3734e-08 au
q 2.665469044107042 5.3834e-08 au
i 10.65622866453636 1.1281e-06 deg
node 166.4972781394918 3.8215e-06 deg
peri 252.8652751197001 9.1256e-06 deg
M 130.2184231509612 1.0344e-05 deg
tp 2458509.220594574114
(2019-Jan-25.72059457)
5.2836e-05 TDB
period 1911.101209272185
5.23
1.3063e-05
3.576e-08
d
yr
n .188373069020819 1.2876e-09 deg/d
Q 3.362256957009488 1.5322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2997  
   data-arc span      32881 days (90.02 yr)  
   first obs. used      1931-03-15  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:13:56  

Additional Information
 Earth MOID = 1.70031 au 
 Jupiter MOID = 2.04394 au 
 T_jup = 3.212 
[ 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 11.45   n/a E2021B10  
diameter diameter 20.829 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 209.174 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.123   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2413 van de Hulst (6816 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
 6816 P-L = 1931 EM = 1952 DV1 = 1973 FY1 = 1978 ER4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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