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2827 Vellamo (1942 CC)
Classification: Main-belt Asteroid          SPK-ID: 2002827
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03053458530792791 4.5816e-08  
a 2.309388892029709 7.6928e-09 au
q 2.238872659896847 1.0618e-07 au
i 8.62190259702037 5.2062e-06 deg
node 345.4931736850834 2.2079e-05 deg
peri 206.2934639120896 6.5322e-05 deg
M 63.07802813450723 6.1702e-05 deg
tp 2458775.894884434310
(2019-Oct-19.39488443)
0.00021968 TDB
period 1281.870153442775
3.51
6.405e-06
1.754e-08
d
yr
n .2808396771179454 1.4032e-09 deg/d
Q 2.379905124162572 7.9276e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2447  
   data-arc span      33554 days (91.87 yr)  
   first obs. used      1928-02-25  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4058  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:45:28  

Additional Information
 Earth MOID = 1.24324 au 
 Jupiter MOID = 2.58944 au 
 T_jup = 3.570 
[ 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 12.2   n/a MPO473804  
diameter diameter 9.301 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.7386 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J.; Groom, R. (2018) Minor Planet Bull. 45, 363-366.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.324   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
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)

2827 Vellamo (1942 CC)          Discovered 1942-Feb-11 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1942 CC = 1928 DQ = 1933 SR = 1936 NC = 1949 BG = 1953 GB = 1968 QJ = 1970 EA = 1979 WK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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