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1117 Reginita (1927 KA)
Classification: Main-belt Asteroid          SPK-ID: 2001117
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1979869700971817 2.9184e-08  
a 2.248055372748968 4.796e-09 au
q 1.802969700887709 6.5979e-08 au
i 4.344124326967325 3.3049e-06 deg
node 147.0996895627744 4.4573e-05 deg
peri 151.105291734441 4.5323e-05 deg
M 178.1017818626875 9.3893e-06 deg
tp 2458391.419497930203
(2018-Sep-29.91949793)
3.1511e-05 TDB
period 1231.144228046963
3.37
3.9398e-06
1.079e-08
d
yr
n .2924109066986322 9.3575e-10 deg/d
Q 2.693141044610226 5.7456e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3059  
   data-arc span      42199 days (115.53 yr)  
   first obs. used      1904-10-09  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42602  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:19:11  

Additional Information
 Earth MOID = .788785 au 
 Jupiter MOID = 2.52512 au 
 T_jup = 3.599 
[ 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 11.7   n/a MPO256870  
diameter diameter 10.193 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.946 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Tan, H.; Li, B.; Gao, X. (2017) Minor Planet Bull. 44, 307.]
[Franco, L.; Marchini, A.; Baj, G.; Scarfi, G.; et al. (2018) Minor Planet Bull. 45, 399-400.]
[Franco, L.; Marchini, A.; Galdies, C; Brincat, S.M.; Grech, W. (2019) Minor Planet Bull. 46, 269-271.]
[Galdies, C.; Brincat, S.M.; Grech, W. (2019) Minor Planet Bull. 46, 61-62.]
geometric albedo albedo 0.293   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1117 Reginita (1927 KA)          Discovered 1927-May-24 by Comas Sola, J. at Barcelona
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 KA = A904 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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