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1294 Antwerpia (1933 UB1)
Classification: Main-belt Asteroid          SPK-ID: 2001294
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2331650814080891 3.9022e-08  
a 2.68759237855705 9.2165e-09 au
q 2.060939682819036 1.0399e-07 au
i 8.725633807767979 4.0988e-06 deg
node 81.13835287156427 2.6019e-05 deg
peri 313.0209444047666 2.7151e-05 deg
M 240.3070715878316 1.0602e-05 deg
tp 2459535.568667023254
(2021-Nov-17.06866702)
4.9162e-05 TDB
period 1609.324148750532
4.41
8.2782e-06
2.266e-08
d
yr
n .2236963884991731 1.1507e-09 deg/d
Q 3.314245074295065 1.1365e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2541  
   data-arc span      37760 days (103.38 yr)  
   first obs. used      1917-03-16  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42616  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:31:25  

Additional Information
 Earth MOID = 1.07954 au 
 Jupiter MOID = 2.14233 au 
 T_jup = 3.318 
[ 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 10.7   n/a MPO337255  
diameter diameter 37.199 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.63 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
[LeCrone, C.; Addleman, D.; Butler, T.; Hudson, E.; et al. (2005) Minor Planet Bull. 32, 46-48.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.117   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1294 Antwerpia (1933 UB1)          Discovered 1933-Oct-24 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 UB1 = 1930 AF = 1932 LC = 1964 VA2 = 1964 XF = A917 DB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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