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5001 EMP (1987 SB1)
Classification: Main-belt Asteroid          SPK-ID: 2005001
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709853972342668 1.9431e-08  
a 2.663403855190902 1.1637e-08 au
q 2.208000689015808 5.3708e-08 au
i 13.71379913891109 1.4854e-06 deg
node 169.8964324530787 9.2471e-06 deg
peri 151.4272835878156 1.1293e-05 deg
M 262.0462035691176 1.3403e-05 deg
tp 2459632.489046426042
(2022-Feb-21.98904643)
6.0778e-05 TDB
period 1587.64705789744
4.35
1.0405e-05
2.849e-08
d
yr
n .2267506485205578 1.4861e-09 deg/d
Q 3.118807021365996 1.3627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2624  
   data-arc span      25018 days (68.50 yr)  
   first obs. used      1952-09-15  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 17:01:35  

Additional Information
 Earth MOID = 1.20431 au 
 Jupiter MOID = 2.30002 au 
 T_jup = 3.323 
[ 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 12.2   n/a MPO431555  
diameter diameter 9.724 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 26.3919 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.149   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

5001 EMP (1987 SB1)          Discovered 1987-Sep-19 by Bowell, E. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 SB1 = 1952 RF = 1977 EN4 = 1982 KQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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