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2041 Lancelot (2523 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2002041
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1981474390480692 3.6713e-08  
a 3.15611001796154 1.516e-08 au
q 2.530734900548505 1.1501e-07 au
i 2.980851437891256 3.7172e-06 deg
node 134.0528321241478 8.2203e-05 deg
peri 274.0599278409692 8.2794e-05 deg
M 205.0238072547801 1.1308e-05 deg
tp 2459882.135591432075
(2022-Oct-29.63559143)
6.811e-05 TDB
period 2047.984321290771
5.61
1.4756e-05
4.04e-08
d
yr
n .1757825957247099 1.2665e-09 deg/d
Q 3.781485135374575 1.8163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2231  
   data-arc span      25775 days (70.57 yr)  
   first obs. used      1949-11-21  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47881  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:40:27  

Additional Information
 Earth MOID = 1.54301 au 
 Jupiter MOID = 1.61927 au 
 T_jup = 3.173 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO473792  
diameter diameter 16.833 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2041 Lancelot (2523 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

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Alternate Designations
 2523 P-L = 1972 XO2 = 1973 AP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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