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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2325948588067975 1.9302e-08  
a 2.689250182658518 8.4376e-09 au
q 2.063744416126906 5.4792e-08 au
i 8.720294246348873 1.2109e-06 deg
node 81.12938958550075 6.043e-06 deg
peri 312.8838348334655 6.8128e-06 deg
M 285.1340454471045 7.3123e-06 deg
tp 2459535.486343659610
(2021-Nov-16.98634366)
3.3724e-05 TDB
period 1610.813412286822
4.41
7.581e-06
2.076e-08
d
yr
n .2234895719479509 1.0518e-09 deg/d
Q 3.31475594919013 1.04e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2650  
   data-arc span      37830 days (103.57 yr)  
   first obs. used      1917-03-16  
   last obs. used      2020-10-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42269  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:15:18  

Additional Information
 Earth MOID = 1.0813 au 
 Jupiter MOID = 2.14336 au 
 T_jup = 3.317 
[ 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 10.72   n/a E2021B10  
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. 2020-October); 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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