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1250 Galanthus (1933 BD)
Classification: Main-belt Asteroid          SPK-ID: 2001250
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2743934287241522 2.078e-08  
a 2.550519970185629 9.7035e-09 au
q 1.850674050536972 5.2266e-08 au
i 15.1763912602443 4.8329e-07 deg
node 291.9816899380093 1.576e-06 deg
peri 217.4438323376943 2.0755e-06 deg
M 179.3707838598245 4.2185e-06 deg
tp 2458459.205590906798
(2018-Dec-06.70559091)
1.4177e-05 TDB
period 1487.789602804571
4.07
8.4905e-06
2.325e-08
d
yr
n .241969697409754 1.3809e-09 deg/d
Q 3.250365889834286 1.2366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2384  
   data-arc span      32108 days (87.91 yr)  
   first obs. used      1933-01-25  
   last obs. used      2020-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 12:22:34  

Additional Information
 Earth MOID = .885039 au 
 Jupiter MOID = 1.89589 au 
 T_jup = 3.340 
[ 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 12.45   n/a E2021B10 IRAS observations used: 3
diameter diameter 20.062 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.92 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Binzel, R.P.; Mulholland, J.D. (1983) Icarus 56, 519-533.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.055   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1250 Galanthus (1933 BD)          Discovered 1933-Jan-25 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 BD = 1971 OQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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