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118195 (1994 SP7)
Classification: Main-belt Asteroid          SPK-ID: 2118195
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0852109185772752 4.3761e-08  
a 3.079953866568065 2.2563e-08 au
q 2.81750816842217 1.2997e-07 au
i 1.224127472148767 5.3989e-06 deg
node 74.94072457832742 0.00022787 deg
peri 60.88002709248513 0.00023046 deg
M 190.4876228088111 3.5409e-05 deg
tp 2460130.137550234122
(2023-Jul-04.63755023)
0.00019737 TDB
period 1974.307266700758
5.41
2.1695e-05
5.94e-08
d
yr
n .1823424378119177 2.0037e-09 deg/d
Q 3.342399564713961 2.4486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      545  
   data-arc span      9433 days (25.83 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-07-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58815  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:09  

Additional Information
 Earth MOID = 1.83152 au 
 Jupiter MOID = 1.67487 au 
 T_jup = 3.222 
[ 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 15.49   n/a E2021B55  
diameter diameter 5.455 km 0.541 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.00 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.045   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118195 (1994 SP7)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 1994 SP7 = 2002 CA95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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