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22516 (1998 DN28)
Classification: Main-belt Asteroid          SPK-ID: 2022516
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09836664972024667 3.2916e-08  
a 2.650994791937377 1.1616e-08 au
q 2.390225315828675 8.975e-08 au
i 4.695556350182144 3.4404e-06 deg
node 139.2972991922935 4.3834e-05 deg
peri 143.6587231539302 4.8161e-05 deg
M 3.046383856341211 2.0431e-05 deg
tp 2459187.158831690931
(2020-Dec-03.65883169)
8.9477e-05 TDB
period 1576.56448358186
4.32
1.0362e-05
2.837e-08
d
yr
n .2283446086404925 1.5008e-09 deg/d
Q 2.911764268046079 1.2759e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1140  
   data-arc span      9095 days (24.90 yr)  
   first obs. used      1995-08-26  
   last obs. used      2020-07-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52797  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:12  

Additional Information
 Earth MOID = 1.37387 au 
 Jupiter MOID = 2.20977 au 
 T_jup = 3.379 
[ 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 15.13   n/a E2021B10  

22516 (1998 DN28)          Discovered 1998-Feb-26 by Spacewatch at Kitt Peak
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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