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30975 (1995 EM)
Classification: Main-belt Asteroid          SPK-ID: 2030975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09958099860128522 3.1388e-08  
a 2.419366383770574 6.848e-09 au
q 2.17844346329232 7.6203e-08 au
i 6.834107031897174 2.9055e-06 deg
node 21.15648488166133 3.0527e-05 deg
peri 67.07682004231339 3.5246e-05 deg
M 11.55483484067683 1.6676e-05 deg
tp 2459156.382374341890
(2020-Nov-02.88237434)
6.3692e-05 TDB
period 1374.519450594687
3.76
5.8359e-06
1.598e-08
d
yr
n .2619097167699197 1.112e-09 deg/d
Q 2.660289304248828 7.5299e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1882  
   data-arc span      9513 days (26.05 yr)  
   first obs. used      1995-03-05  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47234  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:32:57  

Additional Information
 Earth MOID = 1.20482 au 
 Jupiter MOID = 2.51069 au 
 T_jup = 3.498 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.43   n/a E2021B10  
diameter diameter 3.126 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.378   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30975 (1995 EM)          Discovered 1995-Mar-06 by Kobayashi, T. at Oizumi
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 EM = 1997 SB16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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