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2016 Heinemann (1938 SE)
Classification: Main-belt Asteroid          SPK-ID: 2002016
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1920718327022688 1.793e-08  
a 3.129209364156061 1.239e-08 au
q 2.528176386673505 5.9551e-08 au
i .9192273187423857 9.5253e-07 deg
node 16.95231453377217 6.9476e-05 deg
peri 340.6388336776032 6.8464e-05 deg
M 286.8042588243734 4.5193e-06 deg
tp 2459611.586931461636
(2022-Feb-01.08693146)
2.6351e-05 TDB
period 2021.856640143819
5.54
1.2009e-05
3.288e-08
d
yr
n .1780541670720988 1.0575e-09 deg/d
Q 3.730242341638617 1.477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2890  
   data-arc span      42133 days (115.35 yr)  
   first obs. used      1905-10-25  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42822  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:14:35  

Additional Information
 Earth MOID = 1.52262 au 
 Jupiter MOID = 1.72025 au 
 T_jup = 3.185 
[ 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 11.94   n/a E2021B10  
diameter diameter 22.435 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 22.96 h n/a LCDB (Rev. 2020-October); 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:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.058   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2016 Heinemann (1938 SE)          Discovered 1938-Sep-18 by Bohrmann, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1938 SE = 1927 SM = 1930 DF = 1949 SB1 = 1971 OB1 = 1971 QP2 = 1972 VY = 1977 RZ7 = A905 UF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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