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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2448945043772645 2.3569e-08  
a 2.331664899089658 7.3803e-09 au
q 1.760652979253232 5.2514e-08 au
i 9.225387408763572 7.1866e-07 deg
node 292.8025189386497 3.5671e-06 deg
peri 50.39235476343318 5.8119e-06 deg
M .4168797738270818 8.1103e-06 deg
tp 2459394.994065950278
(2021-Jun-29.49406595)
2.9292e-05 TDB
period 1300.461888383448
3.56
6.1744e-06
1.69e-08
d
yr
n .27682472144378 1.3143e-09 deg/d
Q 2.902676818926085 9.1877e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1934  
   data-arc span      23226 days (63.59 yr)  
   first obs. used      1957-11-25  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:28:05  

Additional Information
 Earth MOID = .767336 au 
 Jupiter MOID = 2.54227 au 
 T_jup = 3.513 
[ 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 13.70   n/a E2021B10  
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. 2020-October); 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

Alternate Designations
 1939 RD = 1964 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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