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JPL Small-Body Database Browser
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307 Nike
Classification: Main-belt Asteroid          SPK-ID: 2000307
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 .1434745809156761 3.7971e-08  
a 2.906725000056873 1.0284e-08 au
q 2.489683848836594 1.115e-07 au
i 6.12598440943481 3.7315e-06 deg
node 100.9563332494882 4.2503e-05 deg
peri 324.3777340809838 4.4729e-05 deg
M 89.36580455908958 1.4264e-05 deg
tp 2458551.161930995185
(2019-Mar-08.66193100)
7.1345e-05 TDB
period 1810.107407859512
4.96
9.6067e-06
2.63e-08
d
yr
n .1988832256234492 1.0555e-09 deg/d
Q 3.323766151277151 1.176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2787  
   data-arc span      47028 days (128.76 yr)  
   first obs. used      1891-03-05  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44637  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:40:59  

Additional Information
 Earth MOID = 1.50661 au 
 Jupiter MOID = 1.97523 au 
 T_jup = 3.261 
[ 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 10.1   n/a MPO502155 IRAS observations used: 17
diameter diameter 61.313 km 0.789 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 11.857 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2016) Minor Planet Bull. 43, 304-306.]
geometric albedo albedo 0.043   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.669   0.074 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.03, mean=8.58, max.=9.13) deg.
U-B UB 0.267   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.03 deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

307 Nike          Discovered 1891-Mar-05 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1957 LM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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