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JPL Small-Body Database Browser
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1507 Vaasa (1939 RD)
Classification: Main-belt Asteroid          SPK-ID: 2001507
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .244847688635414 4.5629e-08  
a 2.330971110354879 9.3587e-09 au
q 1.760238221708562 1.0488e-07 au
i 9.226832262118011 5.0809e-06 deg
node 292.8046407552639 2.4605e-05 deg
peri 50.49700047678498 2.6364e-05 deg
M 250.6784838287211 1.3664e-05 deg
tp 2459395.236157145775
(2021-Jun-29.73615715)
5.1186e-05 TDB
period 1299.881501367369
3.56
7.8284e-06
2.143e-08
d
yr
n .2769483215364704 1.6679e-09 deg/d
Q 2.901703999001196 1.165e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1590  
   data-arc span      22688 days (62.12 yr)  
   first obs. used      1957-11-25  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:05:13  

Additional Information
 Earth MOID = .767772 au 
 Jupiter MOID = 2.5436 au 
 T_jup = 3.513 
[ show covariance matrix ]

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 13.6   n/a MPO365262  
diameter diameter 4.648 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 34.07 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2004) Minor Planet Bull. 31, 4-6.]
geometric albedo albedo 0.444   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1507 Vaasa (1939 RD)          Discovered 1939-Sep-12 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1939 RD = 1964 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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