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16909 Miladejager (1998 DX33)
Classification: Main-belt Asteroid          SPK-ID: 2016909
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01972063703612931 2.1713e-08  
a 2.855565879531294 1.1201e-08 au
q 2.799252301288302 6.0886e-08 au
i 2.545073311513423 8.3908e-07 deg
node 41.43449083113347 1.601e-05 deg
peri 214.6325706251279 4.6081e-05 deg
M 173.6174161355294 4.7199e-05 deg
tp 2458350.483236475229
(2018-Aug-19.98323648)
0.00022925 TDB
period 1762.530751120285
4.83
1.037e-05
2.839e-08
d
yr
n .2042517554778434 1.2018e-09 deg/d
Q 2.911879457774286 1.1422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2885  
   data-arc span      9774 days (26.76 yr)  
   first obs. used      1994-06-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45731  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:46:18  

Additional Information
 Earth MOID = 1.78301 au 
 Jupiter MOID = 2.06864 au 
 T_jup = 3.302 
[ 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 13.19   n/a E2021B10  
diameter diameter 6.867 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.786 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.259   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16909 Miladejager           Discovered 1998 Feb. 27 by E. W. Elst at the European Southern Observatory.
Miladejager (b. 2005) is the first granddaughter of the discoverer, and daughter of Sigyn and Philip.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-03-16Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 1998 DX33 = 1994 LP4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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