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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2448945074840043 2.2667e-08  
a 2.331664900367485 6.9097e-09 au
q 1.760652972974249 5.0855e-08 au
i 9.225387430039868 7.1769e-07 deg
node 292.8025187625118 3.5599e-06 deg
peri 50.39235558294587 5.6228e-06 deg
M .4168782989719743 7.5336e-06 deg
tp 2459394.994071276798
(2021-Jun-29.49407128)
2.7209e-05 TDB
period 1300.461889452489
3.56
5.7807e-06
1.583e-08
d
yr
n .2768247212162169 1.2305e-09 deg/d
Q 2.90267682776072 8.6018e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2021  
   data-arc span      23268 days (63.70 yr)  
   first obs. used      1957-11-25  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:46:34  

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 13.69   n/a MPO636084  
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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