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JPL Small-Body Database Browser
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27250 (1999 XB)
Classification: Main-belt Asteroid          SPK-ID: 2027250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2063707339915671 4.8075e-08  
a 2.63908842228286 1.5852e-08 au
q 2.094457807507699 1.2981e-07 au
i 15.23191851219172 5.047e-06 deg
node 30.02698007247472 1.7685e-05 deg
peri 321.4840497971751 2.017e-05 deg
M 295.4554046793521 1.1471e-05 deg
tp 2459281.260961142446
(2021-Mar-07.76096114)
5.1361e-05 TDB
period 1565.955220714611
4.29
1.4109e-05
3.863e-08
d
yr
n .2298916311513154 2.0713e-09 deg/d
Q 3.18371903705802 1.9123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      970  
   data-arc span      8593 days (23.53 yr)  
   first obs. used      1995-10-22  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57168  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:27:22  

Additional Information
 Earth MOID = 1.11213 au 
 Jupiter MOID = 2.32696 au 
 T_jup = 3.316 
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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 14.3   n/a MPO474122  
diameter diameter 3.735 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27250 (1999 XB)          Discovered 1999-Dec-01 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 XB = 1998 HP80 = 1999 SV8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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