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2381 Landi (1976 AF)
Classification: Main-belt Asteroid          SPK-ID: 2002381
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670043997628056 4.5054e-08  
a 2.612635359719134 1.0123e-08 au
q 2.176313759670158 1.1674e-07 au
i 13.63147519794361 3.8559e-06 deg
node 150.1330226805908 2.0449e-05 deg
peri 278.0095030517035 2.3132e-05 deg
M 218.7783352219442 1.1929e-05 deg
tp 2459605.583699398051
(2022-Jan-26.08369940)
5.2186e-05 TDB
period 1542.469649579904
4.22
8.9649e-06
2.454e-08
d
yr
n .2333919504335447 1.3565e-09 deg/d
Q 3.04895695976811 1.1814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2310  
   data-arc span      25301 days (69.27 yr)  
   first obs. used      1951-03-10  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4182  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:44:24  

Additional Information
 Earth MOID = 1.23923 au 
 Jupiter MOID = 2.33337 au 
 T_jup = 3.350 
[ 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 11.7   n/a MPO337267  
diameter diameter 13.054 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.989 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Owings, L.E. (2018) Minor Planet Bull. 45, 227-231.]
geometric albedo albedo 0.286   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2381 Landi (1976 AF)          Discovered 1976-Jan-03 by Felix Aguilar Observatory at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 AF = 1951 EG1 = 1953 QP = 1968 FF = 1970 SD = 1978 NN3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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