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JPL Small-Body Database Browser
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2277 Moreau (1950 DS)
Classification: Main-belt Asteroid          SPK-ID: 2002277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1245955718641034 3.9446e-08  
a 2.600166087078452 1.1379e-08 au
q 2.276196906517264 1.0456e-07 au
i 11.55340286674801 3.8859e-06 deg
node 105.0181413711402 2.0426e-05 deg
peri 70.7365754015734 2.5553e-05 deg
M 158.2945435355617 1.6805e-05 deg
tp 2457927.114895464648
(2017-Jun-22.61489546)
7.0052e-05 TDB
period 1531.440264574034
4.19
1.0053e-05
2.752e-08
d
yr
n .235072831978943 1.5432e-09 deg/d
Q 2.924135267639639 1.2797e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2027  
   data-arc span      25487 days (69.78 yr)  
   first obs. used      1950-02-18  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43024  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:12:59  

Additional Information
 Earth MOID = 1.31304 au 
 Jupiter MOID = 2.14027 au 
 T_jup = 3.376 
[ 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 12.0   n/a MPO502175  
diameter diameter 11.654 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 lower-limit; Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.185   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2277 Moreau (1950 DS)          Discovered 1950-Feb-18 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1950 DS = 1978 YB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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