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91028 (1998 DU37)
Classification: Main-belt Asteroid          SPK-ID: 2091028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2631582650961365 4.0819e-08  
a 2.621680613706461 1.226e-08 au
q 1.931763691767294 1.1119e-07 au
i 2.819748441835797 4.3037e-06 deg
node 328.9395353144054 9.8563e-05 deg
peri 324.1561815980266 9.9148e-05 deg
M 315.8065879849404 1.2028e-05 deg
tp 2459190.836962026554
(2020-Dec-07.33696203)
5.2113e-05 TDB
period 1550.486898504456
4.25
1.0876e-05
2.978e-08
d
yr
n .2321851286503891 1.6287e-09 deg/d
Q 3.311597535645628 1.5487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      10482 days (28.70 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60897  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:37:22  

Additional Information
 Earth MOID = .916537 au 
 Jupiter MOID = 1.90565 au 
 T_jup = 3.353 
[ 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 15.5   n/a MPO468895  

91028 (1998 DU37)          Discovered 1998-Feb-24 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 DU37 = 1999 LZ19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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