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16400 (1984 SS1)
Classification: Main-belt Asteroid          SPK-ID: 2016400
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07083770297186893 4.052e-08  
a 2.162885260278728 5.4503e-09 au
q 2.009671436648869 8.8789e-08 au
i 3.049118572369624 4.7178e-06 deg
node 229.9658463331091 5.667e-05 deg
peri 196.7866110209301 6.2326e-05 deg
M 27.35801553951874 2.5603e-05 deg
tp 2458912.206092034954
(2020-Mar-03.70609203)
8.2624e-05 TDB
period 1161.846217299709
3.18
4.3916e-06
1.202e-08
d
yr
n .3098516779928843 1.1712e-09 deg/d
Q 2.316099083908586 5.8364e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2165  
   data-arc span      14244 days (39.00 yr)  
   first obs. used      1981-10-30  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49407  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:27:35  

Additional Information
 Earth MOID = 1.02341 au 
 Jupiter MOID = 2.85291 au 
 T_jup = 3.690 
[ 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 14.3   n/a MPO395161  
diameter diameter 3.751 km 1.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.288   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

16400 (1984 SS1)          Discovered 1984-Sep-27 by Vavrova, Z. at Klet
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1984 SS1 = 1981 UW2 = 1987 RC4 = 1987 SY17 = 1997 WM13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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