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101368 (1998 UW2)
Classification: Main-belt Asteroid          SPK-ID: 2101368
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814769458708169 5.3604e-08  
a 2.543427926077546 9.0106e-09 au
q 2.081854394010447 1.3914e-07 au
i 5.634287117957061 4.5594e-06 deg
node 22.32926398828284 3.5619e-05 deg
peri 327.5331671546368 3.671e-05 deg
M 196.8519961283467 9.2639e-06 deg
tp 2459871.939433574575
(2022-Oct-19.43943357)
4.0163e-05 TDB
period 1481.588437189854
4.06
7.8732e-06
2.156e-08
d
yr
n .2429824578563911 1.2912e-09 deg/d
Q 3.005001458144644 1.0646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1060  
   data-arc span      9157 days (25.07 yr)  
   first obs. used      1996-02-18  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56994  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:27  

Additional Information
 Earth MOID = 1.07703 au 
 Jupiter MOID = 2.42992 au 
 T_jup = 3.414 
[ 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 15.63   n/a E2021B55  
diameter diameter 1.777 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.24116 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.387   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101368 (1998 UW2)          Discovered 1998-Oct-20 by ODAS at Caussols
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 UW2 = 2002 PY49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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