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JPL Small-Body Database Browser
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91209 (1998 XH72)
Classification: Main-belt Asteroid          SPK-ID: 2091209
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1192473801988609 3.5151e-08  
a 2.211928037441417 8.9108e-09 au
q 1.94816141378812 7.7368e-08 au
i 7.948133354727157 7.6158e-06 deg
node 356.2692438470321 2.3089e-05 deg
peri 72.6670383511793 4.0401e-05 deg
M 203.5723899138535 3.2682e-05 deg
tp 2459522.614586777300
(2021-Nov-04.11458678)
0.00011022 TDB
period 1201.586159478595
3.29
7.2609e-06
1.988e-08
d
yr
n .2996039835846769 1.8104e-09 deg/d
Q 2.475694661094713 9.9734e-09 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      9534 days (26.10 yr)  
   first obs. used      1993-03-21  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53689  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:25:44  

Additional Information
 Earth MOID = .978637 au 
 Jupiter MOID = 2.77907 au 
 T_jup = 3.635 
[ 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 16.1   n/a MPO432450  

91209 (1998 XH72)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 XH72 = 2001 RK73 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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