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16704 (1995 ED8)
Classification: Main-belt Asteroid          SPK-ID: 2016704
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2145580687780733 1.2072e-08  
a 2.33912585686107 7.7087e-09 au
q 1.837247530384103 2.9113e-08 au
i 22.86428127211336 5.7903e-07 deg
node 351.65977798352 2.0388e-06 deg
peri 221.8185349537958 4.7293e-06 deg
M 51.42254414165483 5.9315e-06 deg
tp 2459013.849193724389
(2020-Jun-13.34919372)
2.1509e-05 TDB
period 1306.708786599871
3.58
6.4594e-06
1.768e-08
d
yr
n .2755013233948935 1.3619e-09 deg/d
Q 2.841004183338037 9.3626e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1812  
   data-arc span      11323 days (31.00 yr)  
   first obs. used      1989-09-28  
   last obs. used      2020-09-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42708  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:39:19  

Additional Information
 Earth MOID = .878929 au 
 Jupiter MOID = 2.24134 au 
 T_jup = 3.431 
[ 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 13.7   n/a MPO502297  
diameter diameter 5.024 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16704 (1995 ED8)          Discovered 1995-Mar-07 by Hirasawa, M., Suzuki, S. at Nyukasa
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 ED8 = 1989 SW12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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