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JPL Small-Body Database Browser
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37965 (1998 HH89)
Classification: Main-belt Asteroid          SPK-ID: 2037965
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06543931451700784 4.0363e-08  
a 2.756623025281412 1.7954e-08 au
q 2.576231504125197 1.1564e-07 au
i 8.822173628486501 5.2939e-06 deg
node 207.0821737867298 2.8176e-05 deg
peri 53.74658477776283 5.1708e-05 deg
M 257.9993250294286 4.5916e-05 deg
tp 2459474.158178788459
(2021-Sep-16.65817879)
0.00021518 TDB
period 1671.723686270132
4.58
1.6332e-05
4.471e-08
d
yr
n .215346592835096 2.1038e-09 deg/d
Q 2.937014546437628 1.9129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      808  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1995-09-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .537  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:41:36  

Additional Information
 Earth MOID = 1.57319 au 
 Jupiter MOID = 2.092 au 
 T_jup = 3.323 
[ 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 15.0   n/a MPO502425  

37965 (1998 HH89)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HH89 = 2000 WD180 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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