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249991 (2001 XX65)
Classification: Main-belt Asteroid          SPK-ID: 2249991
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2080560846637678 5.0482e-08  
a 2.845675126099094 1.8361e-08 au
q 2.253615101137842 1.4297e-07 au
i 12.17487876053139 5.3639e-06 deg
node 272.3736696598636 2.3719e-05 deg
peri 122.0917421877684 2.7584e-05 deg
M 31.69348918024322 1.2691e-05 deg
tp 2459046.136734754495
(2020-Jul-15.63673475)		 6.1317e-05 TDB
period 1753.381433402506
4.80		 1.697e-05
4.646e-08		 d
yr
n .2053175613371278 1.9872e-09 deg/d
Q 3.437735151060345 2.2182e-08 au
   Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      7003 days (19.17 yr)  
   first obs. used      2001-12-09  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52742  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 02:09:41  

Additional Information
 Earth MOID = 1.28736 au 
 Jupiter MOID = 2.08773 au 
 T_jup = 3.243 
[ 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 15.87   n/a MPCxxxxx  
diameter diameter 3.944 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249991 (2001 XX65)          Discovered 2001-Dec-10 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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