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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2722930313249335 4.209e-08  
a 2.550813536853218 1.0667e-08 au
q 1.85624478655878 1.0671e-07 au
i 15.17065097417079 4.0106e-06 deg
node 292.0050537316128 2.0466e-05 deg
peri 217.2141421382453 2.249e-05 deg
M 34.69911369214772 1.1374e-05 deg
tp 2458457.072516826924
(2018-Dec-04.57251683)
4.6879e-05 TDB
period 1488.046478662417
4.07
9.3337e-06
2.555e-08
d
yr
n .2419279270924378 1.5175e-09 deg/d
Q 3.245382287147655 1.3571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      31512 days (86.28 yr)  
   first obs. used      1933-01-25  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39138  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:20:57  

Additional Information
 Earth MOID = .890826 au 
 Jupiter MOID = 1.90157 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 12.4   n/a MPO473780 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. 2019-January); 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.]
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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