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2681 Ostrovskij (1975 VF2)
Classification: Main-belt Asteroid          SPK-ID: 2002681
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1923267689115705 3.5542e-08  
a 2.746561929539978 1.1158e-08 au
q 2.218324548016025 9.9184e-08 au
i 3.975754772194497 2.8841e-06 deg
node 66.74449846450646 5.8206e-05 deg
peri 61.57806824133871 5.8768e-05 deg
M 196.7152183080281 1.0621e-05 deg
tp 2459754.594424807036
(2022-Jun-24.09442481)
5.1292e-05 TDB
period 1662.579881097886
4.55
1.0131e-05
2.774e-08
d
yr
n .2165309493353629 1.3194e-09 deg/d
Q 3.27479931106393 1.3304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2395  
   data-arc span      19210 days (52.59 yr)  
   first obs. used      1968-03-27  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:06  

Additional Information
 Earth MOID = 1.23673 au 
 Jupiter MOID = 1.79864 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457197.5 (2015-Jun-24.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899674069002917 3.5222e-08  
q 2.226090093998047 9.7967e-08 au
tp 2456423.488733115855
(2013-May-10.98873312)
4.5038e-05 TDB
node 66.82923623062192 5.8006e-05 deg
peri 60.96843049846217 5.8611e-05 deg
i 3.982369002320617 2.8859e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2395  
   data-arc span      19210 days (52.59 yr)  
   first obs. used      1968-03-27  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:06  

Additional Information
 Jupiter MOID = 1.79864 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.240595894286063E-15 -3.436441767344423E-15 4.56077341529298E-13 -4.648918868723014E-15 9.208623098880748E-14 4.678391632386213E-16
q -3.436441767344423E-15 9.597462321942377E-15 -1.181824991462305E-12 1.319925640395066E-14 -2.335970700066833E-13 -1.220453008621759E-15
tp 4.56077341529298E-13 -1.181824991462305E-12 2.028437363807418E-9 -3.870363140747234E-12 4.052954169129283E-10 3.184160880537765E-13
node -4.648918868723014E-15 1.319925640395066E-14 -3.870363140747234E-12 3.364680473447692E-9 -3.3571511145795E-9 1.44556423791962E-11
peri 9.208623098880748E-14 -2.335970700066833E-13 4.052954169129283E-10 -3.3571511145795E-9 3.43525801743002E-9 -1.435547379829996E-11
i 4.678391632386213E-16 -1.220453008621759E-15 3.184160880537765E-13 1.44556423791962E-11 -1.435547379829996E-11 8.328318154054237E-12

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 12.3   n/a MPO332842  
diameter diameter 13.297 km 0.393 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.2231 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Brincat, S.M.; Baldies, C. (2018) Minor Planet Bull. 45, 244-245.]
geometric albedo albedo 0.120   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Xk   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)

2681 Ostrovskij (1975 VF2)          Discovered 1975-Nov-02 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1975 VF2 = 1968 FZ = 1972 AF = 1977 DV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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