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278 Paulina (A888 KA)
Classification: Main-belt Asteroid          SPK-ID: 2000278
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1315829190036306 1.7838e-08  
a 2.756408518254253 6.6615e-09 au
q 2.393712239455886 4.9404e-08 au
i 7.815589445863847 6.1914e-07 deg
node 61.98624955403035 3.7731e-06 deg
peri 140.0325791264146 1.2015e-05 deg
M 71.23506992639882 8.7839e-06 deg
tp 2459065.745961130703
(2020-Aug-04.24596113)
4.0642e-05 TDB
period 1671.528561928464
4.58
6.0594e-06
1.659e-08
d
yr
n .215371731120564 7.8074e-10 deg/d
Q 3.11910479705262 7.538e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3619  
   data-arc span      47751 days (130.74 yr)  
   first obs. used      1890-11-13  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:26:09  

Additional Information
 Earth MOID = 1.39646 au 
 Jupiter MOID = 1.85406 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456418.5 (2013-May-06.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332675449305169 1.7811e-08  
q 2.387291875313126 4.9614e-08 au
tp 2455724.521650024573
(2011-Jun-12.02165002)
4.0935e-05 TDB
node 62.08261349196226 3.7697e-06 deg
peri 139.9588467190828 1.1914e-05 deg
i 7.821315644994478 6.1963e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3619  
   data-arc span      47751 days (130.74 yr)  
   first obs. used      1890-11-13  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:26:09  

Additional Information
 Jupiter MOID = 1.85406 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.172332033512391E-16 -8.774868871258426E-16 4.98656375416608E-13 -3.152761945133423E-14 1.698001901770675E-13 -5.875079144837066E-15
q -8.774868871258426E-16 2.461522080543069E-15 -1.430368527635789E-12 8.851973832447547E-14 -4.761039857540951E-13 1.642302427540688E-14
tp 4.98656375416608E-13 -1.430368527635789E-12 1.675688962116301E-9 -4.173616838078404E-11 4.526971707138734E-10 -7.067697144378575E-12
node -3.152761945133423E-14 8.851973832447547E-14 -4.173616838078404E-11 1.421077777363993E-11 -2.604988933271593E-11 2.089635499641317E-12
peri 1.698001901770675E-13 -4.761039857540951E-13 4.526971707138734E-10 -2.604988933271593E-11 1.419416857814598E-10 -4.043984084449173E-12
i -5.875079144837066E-15 1.642302427540688E-14 -7.067697144378575E-12 2.089635499641317E-12 -4.043984084449173E-12 3.839359282467233E-13

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 9.42   n/a MPO636064  
diameter diameter 32.773 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.497 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Barucci, M.A.; Di Martino, M.; Dotto, E.; Fulchignoni, M.; et al. (1994) Icarus 109, 267-273.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J. (2006) IAU 2006, poster paper.]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.247   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   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)

278 Paulina (A888 KA)          Discovered 1888-May-16 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A888 KA = 1959 XF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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