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300 Geraldina (A890 TB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000300
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet 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. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05744390699791458 3.6813e-08  
a 3.203507246002679 1.296e-08 au
q 3.019485273696156 1.1978e-07 au
i .7319054411728269 3.8187e-06 deg
node 42.64758378404238 0.000285 deg
peri 324.720367971316 0.00028659 deg
M 194.108027434037 3.1268e-05 deg
tp 2459965.572328578733
0.00018445 TDB
period 2094.290838275481
n .171895895937948 1.0431e-09 deg/d
Q 3.387529218309203 1.3705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3502  
   data-arc span      43905 days (120.21 yr)  
   first obs. used      1900-06-04  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43633  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:31:08  

Additional Information
 Earth MOID = 2.01791 au 
 Jupiter MOID = 1.93383 au 
 T_jup = 3.191 
[ 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 9.8   n/a MPO347513  
diameter diameter 67.373 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.8423 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Ivanova, V.G.; Apostolovska, G.; Borisov, G.B.; Bilkina, B.I. (2002) Proc. ACM 2002, ESA SP 500, 505-508.]
[Licchelli, D. (2006) Minor Planet Bull. 33, 50-51.]
[Behrend, R. (2008) Observatoire de Geneve web site,]
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Klinglesmith III, D.A.; Hendrickx, S. (2018) Minor Planet Bull. 45, 162-165.]
[Polakis, T. (2018) Minor Planet Bull. 45, 199-203.]
geometric albedo albedo 0.052   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

300 Geraldina (A890 TB)          Discovered 1890-Oct-03 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A890 TB = 1933 BV = 1950 DV = 1953 PJ = 1953 RO1 = 1961 AD = A923 LB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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