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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198021348604568 2.8854e-08  
a 2.247899781273188 4.7641e-09 au
q 1.802767635057558 6.5314e-08 au
i 4.344501227452453 3.3007e-06 deg
node 147.0983259963165 4.3503e-05 deg
peri 151.1421902619309 4.4256e-05 deg
M 236.5377314643279 9.4432e-06 deg
tp 2459622.677998154236
(2022-Feb-12.17799815)
3.2798e-05 TDB
period 1231.016416093246
3.37
3.9135e-06
1.071e-08
d
yr
n .2924412666587307 9.2969e-10 deg/d
Q 2.693031927488818 5.7075e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3230  
   data-arc span      42472 days (116.28 yr)  
   first obs. used      1904-10-09  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:43  

Additional Information
 Earth MOID = .786606 au 
 Jupiter MOID = 2.52477 au 
 T_jup = 3.600 
[ 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 11.83   n/a E2021B10  
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. 2020-October); 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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