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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1929820804321017 1.4535e-08  
a 2.744862958980752 1.0823e-08 au
q 2.215153594655631 4.287e-08 au
i 3.975648727757986 4.9475e-07 deg
node 66.71819466581927 9.2387e-06 deg
peri 61.69645302824262 1.2119e-05 deg
M 239.9583591157037 8.0138e-06 deg
tp 2459754.371283953697
(2022-Jun-23.87128395)
3.8875e-05 TDB
period 1661.037459622192
4.55
9.8245e-06
2.69e-08
d
yr
n .2167320176402783 1.2819e-09 deg/d
Q 3.274572323305871 1.2912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2567  
   data-arc span      19291 days (52.82 yr)  
   first obs. used      1968-03-27  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:06:30  

Additional Information
 Earth MOID = 1.23348 au 
 Jupiter MOID = 1.79817 au 
 T_jup = 3.318 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457283.5 (2015-Sep-18.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899239592841283 1.4399e-08  
q 2.226293378318001 4.2433e-08 au
tp 2458087.604191806530
(2017-Nov-30.10419181)
3.436e-05 TDB
node 66.82697381076045 9.2038e-06 deg
peri 60.97789976571264 1.2149e-05 deg
i 3.982281088121548 4.939e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2567  
   data-arc span      19291 days (52.82 yr)  
   first obs. used      1968-03-27  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42231  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:06:30  

Additional Information
 Jupiter MOID = 1.79817 au 
 T_jup = 3.318 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.073172453138663E-16 -5.985855461381458E-16 6.046585140539659E-14 2.206625897524383E-14 -1.265099543321101E-14 -7.973655097915021E-17
q -5.985855461381458E-16 1.800534263145078E-15 -4.587038915760587E-14 -6.9000788224045E-14 5.511281484546234E-14 -1.135010363030585E-16
tp 6.046585140539659E-14 -4.587038915760587E-14 1.18063640085168E-9 -1.262979927060551E-10 2.995916928381406E-10 -4.327349639334054E-12
node 2.206625897524383E-14 -6.9000788224045E-14 -1.262979927060551E-10 8.47103892772102E-11 -1.029829968558078E-10 3.193114937185101E-12
peri -1.265099543321101E-14 5.511281484546234E-14 2.995916928381406E-10 -1.029829968558078E-10 1.476022225458372E-10 -3.727462177659406E-12
i -7.973655097915021E-17 -1.135010363030585E-16 -4.327349639334054E-12 3.193114937185101E-12 -3.727462177659406E-12 2.43937505758733E-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 12.40   n/a E2021B10  
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. 2020-October); 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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