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5216 (1941 HA)
Classification: Main-belt Asteroid          SPK-ID: 2005216
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1589516727755408 4.2042e-08  
a 2.610361570642159 1.0449e-08 au
q 2.1954402324396 1.0906e-07 au
i 14.0657667563573 4.3736e-06 deg
node 138.5497717539353 1.5615e-05 deg
peri 192.2611705338159 1.9311e-05 deg
M 69.22083193688816 1.2015e-05 deg
tp 2458304.300895275928
(2018-Jul-04.80089528)
5.1198e-05 TDB
period 1540.45645966646
4.22
9.2494e-06
2.532e-08
d
yr
n .2336969654292905 1.4032e-09 deg/d
Q 3.025282908844719 1.211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2807  
   data-arc span      28440 days (77.86 yr)  
   first obs. used      1941-04-16  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39956  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:37:26  

Additional Information
 Earth MOID = 1.18492 au 
 Jupiter MOID = 2.32701 au 
 T_jup = 3.350 
[ 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 12.0   n/a MPO365310  
diameter diameter 11.327 km 1.702 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 32.206 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.305   0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

5216 (1941 HA)          Discovered 1941-Apr-16 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1941 HA = 1959 RD = 1979 HX5 = 1991 CP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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