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1249 Rutherfordia (1932 VB)
Classification: Main-belt Asteroid          SPK-ID: 2001249
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07633816023564884 3.4993e-08  
a 2.224063044017984 5.3216e-09 au
q 2.054282162989554 7.8058e-08 au
i 4.875660205117025 3.7822e-06 deg
node 258.9973277149141 4.2574e-05 deg
peri 223.1297993225812 4.8903e-05 deg
M 87.51329690158789 2.4339e-05 deg
tp 2458705.996397188077
(2019-Aug-10.49639719)
8.1708e-05 TDB
period 1211.487862598953
3.32
4.3482e-06
1.19e-08
d
yr
n .2971552675960842 1.0665e-09 deg/d
Q 2.393843925046414 5.7278e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2679  
   data-arc span      31867 days (87.25 yr)  
   first obs. used      1932-11-04  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42849  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:49:30  

Additional Information
 Earth MOID = 1.07331 au 
 Jupiter MOID = 2.66105 au 
 T_jup = 3.639 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455978.5 (2012-Feb-21.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07682481340464184 3.498e-08  
q 2.053816653663683 7.8189e-08 au
tp 2456282.863227541124
(2012-Dec-21.36322754)
8.0152e-05 TDB
node 259.0715964603874 4.2618e-05 deg
peri 223.2150325800988 4.8869e-05 deg
i 4.872120841591487 3.7804e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2679  
   data-arc span      31867 days (87.25 yr)  
   first obs. used      1932-11-04  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42849  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:49:30  

Additional Information
 Jupiter MOID = 2.66105 au 
 T_jup = 3.639 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.223590526762216E-15 -2.72962383331591E-15 -1.170167368711019E-13 5.163110140298164E-15 -1.606536533201819E-14 -4.37391013788681E-16
q -2.72962383331591E-15 6.113580918973076E-15 2.923599530480201E-13 -1.209566922394832E-14 4.226006451742579E-14 9.377334883840101E-16
tp -1.170167368711019E-13 2.923599530480201E-13 6.424417434199688E-9 5.350013984635842E-12 1.92681850389317E-9 1.05415294909146E-12
node 5.163110140298164E-15 -1.209566922394832E-14 5.350013984635842E-12 1.816284048205492E-9 -1.807443394618864E-9 1.385309110830246E-11
peri -1.606536533201819E-14 4.226006451742579E-14 1.92681850389317E-9 -1.807443394618864E-9 2.388185602045126E-9 -1.351137987455292E-11
i -4.37391013788681E-16 9.377334883840101E-16 1.05415294909146E-12 1.385309110830246E-11 -1.351137987455292E-11 1.42917924321097E-11

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 11.4   n/a MPO502165 IRAS observations used: 6
diameter diameter 13.063 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 18.242 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Aznar Macias, A.; Carreno Garcerain, A.; Arce Masego, E.; Brines Rodriques, P.; et al. (2016) Minor Planet Bull. 43, 257-263.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.251   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.883   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.96 deg.
U-B UB 0.484   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.96 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

1249 Rutherfordia (1932 VB)          Discovered 1932-Nov-04 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1932 VB = 1925 SF = 1942 XV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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