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JPL Small-Body Database Browser
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1227 Geranium (1931 TD)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001227
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1920583601112163 3.9662e-08  
a 3.219772728664687 1.8002e-08 au
q 2.601388458466531 1.2999e-07 au
i 16.48781729795122 4.7807e-06 deg
node .6864962343971235 1.4351e-05 deg
peri 302.9156403008502 1.8276e-05 deg
M 125.9719943921371 1.1781e-05 deg
tp 2457862.072677382154
(2017-Apr-18.57267738)
6.9779e-05 TDB
period 2110.261391233617
5.78
1.7698e-05
4.845e-08
d
yr
n .1705949800794826 1.4307e-09 deg/d
Q 3.838156998862842 2.146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2385  
   data-arc span      32182 days (88.11 yr)  
   first obs. used      1931-10-05  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43231  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:19:00  

Additional Information
 Earth MOID = 1.62889 au 
 Jupiter MOID = 1.73219 au 
 T_jup = 3.097 
[ 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 10.8   n/a MPO344305  
diameter diameter 46.269 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.363 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Albers, K.; Kragh, K.; Monnier, A.; Pligge, Z.; et al. (2010) Minor Planet Bull. 37, 152-158.]
geometric albedo albedo 0.071   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1227 Geranium (1931 TD)          Discovered 1931-Oct-05 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 TD = 1934 CL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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