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2912 Lapalma (1942 DM)
Classification: Main-belt Asteroid          SPK-ID: 2002912
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07169299592034879 4.1652e-08  
a 2.288614423777324 7.6822e-09 au
q 2.124536799230205 9.5909e-08 au
i 7.278707662922764 3.8645e-06 deg
node 108.1390250169192 3.4048e-05 deg
peri 75.97263356912086 4.2546e-05 deg
M 182.6487204103134 2.6015e-05 deg
tp 2459623.501652223651
(2022-Feb-13.00165222)
9.1833e-05 TDB
period 1264.612216609893
3.46
6.3674e-06
1.743e-08
d
yr
n .2846722459830963 1.4333e-09 deg/d
Q 2.452692048324443 8.2329e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2143  
   data-arc span      28379 days (77.70 yr)  
   first obs. used      1942-02-18  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48215  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:21:01  

Additional Information
 Earth MOID = 1.1409 au 
 Jupiter MOID = 2.52849 au 
 T_jup = 3.586 
[ 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 12.6   n/a MPO384777  
diameter diameter 6.519 km 0.289 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.71076 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Brinsfield, J. (2008) Minor Planet Bull. 35, 119-122.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.456   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B V   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2912 Lapalma (1942 DM)          Discovered 1942-Feb-18 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1942 DM = 1956 EN = 1973 AJ2 = 1973 CB = 1979 YJ = 1980 BG = 1980 DY5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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