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90776 (1993 VW2)
Classification: Main-belt Asteroid          SPK-ID: 2090776
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049209478119989 3.1192e-08  
a 2.354248799483422 9.437e-09 au
q 1.871813904108019 7.2651e-08 au
i 6.02903968868232 3.6531e-06 deg
node 62.70883025520942 4.1607e-05 deg
peri 10.62492404350999 4.2981e-05 deg
M 217.8028456460962 1.2513e-05 deg
tp 2459917.653150989856
(2022-Dec-04.15315099)
4.7585e-05 TDB
period 1319.401469099775
3.61
7.9333e-06
2.172e-08
d
yr
n .2728509922348557 1.6406e-09 deg/d
Q 2.836683694858825 1.1371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      14126 days (38.67 yr)  
   first obs. used      1982-11-07  
   last obs. used      2021-07-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52333  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:35  

Additional Information
 Earth MOID = .88675 au 
 Jupiter MOID = 2.45067 au 
 T_jup = 3.520 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.87   n/a MPO637235  
diameter diameter 3.709 km 1.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 181.09 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.063   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

90776 (1993 VW2)          Discovered 1993-Nov-11 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1993 VW2 = 2000 SR234 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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