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16829 (1997 WG7)
Classification: Main-belt Asteroid          SPK-ID: 2016829
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1685749206700914 3.2965e-08  
a 2.214623151328329 5.2685e-09 au
q 1.841293229279008 7.2836e-08 au
i 5.681593041891165 4.0869e-06 deg
node 301.5515658309507 3.4537e-05 deg
peri 147.9371506844999 3.6525e-05 deg
M 2.801969488399095 1.1041e-05 deg
tp 2459191.130658226440
(2020-Dec-07.63065823)
3.6916e-05 TDB
period 1203.782929274022
3.30
4.2956e-06
1.176e-08
d
yr
n .2990572396778454 1.0672e-09 deg/d
Q 2.587953073377651 6.1566e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1353  
   data-arc span      12162 days (33.30 yr)  
   first obs. used      1987-11-26  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:43:22  

Additional Information
 Earth MOID = .860417 au 
 Jupiter MOID = 2.59919 au 
 T_jup = 3.629 
[ 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 15.29   n/a E2021B10  
diameter diameter 4.760 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.02 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.071   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

16829 (1997 WG7)          Discovered 1997-Nov-24 by Spacewatch at Kitt Peak
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WG7 = 1987 WO2 = 1990 SF28 = 1996 NH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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