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JPL Small-Body Database Browser
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66189 (1998 XA97)
Classification: Main-belt Asteroid          SPK-ID: 2066189
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1197094438544077 3.78e-08  
a 2.31395914676354 1.201e-08 au
q 2.036956384202656 8.5104e-08 au
i 7.005469805665077 4.3154e-06 deg
node 110.7133250085583 4.1408e-05 deg
peri 157.374842832591 5.0692e-05 deg
M 248.8535805072646 3.1532e-05 deg
tp 2459397.440062371768
(2021-Jul-01.94006237)
0.00011274 TDB
period 1285.677245439079
3.52
1.001e-05
2.741e-08
d
yr
n .2800080667812195 2.18e-09 deg/d
Q 2.590961909324423 1.3448e-08 au
  Orbit Determination Parameters
   # obs. used (total)      724  
   data-arc span      10229 days (28.01 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:52:12  

Additional Information
 Earth MOID = 1.02275 au 
 Jupiter MOID = 2.4933 au 
 T_jup = 3.563 
[ 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 15.9   n/a MPO459295  
diameter diameter 1.719 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.88 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.344   0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66189 (1998 XA97)          Discovered 1998-Dec-12 by Naranjo, O. A. at Merida
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XA97 = 2003 FM80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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