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1819 Laputa (1948 PC)
Classification: Main-belt Asteroid          SPK-ID: 2001819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2286220221477404 4.0474e-08  
a 3.134672099009632 1.3354e-08 au
q 2.418017024963948 1.3072e-07 au
i 23.9084773130265 4.1365e-06 deg
node 122.1144446876296 1.0535e-05 deg
peri 166.3706816765132 1.3792e-05 deg
M 328.6898659565727 9.0058e-06 deg
tp 2459176.806786831127
(2020-Nov-23.30678683)
5.0896e-05 TDB
period 2027.15335460308
5.55
1.2954e-05
3.547e-08
d
yr
n .1775889323728488 1.1348e-09 deg/d
Q 3.851327173055316 1.6407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2917  
   data-arc span      33518 days (91.77 yr)  
   first obs. used      1929-02-03  
   last obs. used      2020-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:02:52  

Additional Information
 Earth MOID = 1.40692 au 
 Jupiter MOID = 1.42872 au 
 T_jup = 3.041 
[ 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 10.4   n/a MPO448930  
diameter diameter 54.165 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.8004 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Benishek, V.; Protitch-Benishek, V. (2010) Minor Planet Bull. 37, 64-65.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.050   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1819 Laputa (1948 PC)          Discovered 1948-Aug-09 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1948 PC = 1929 CN = 1974 DY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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