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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456988.5 (2014-Nov-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .244539666380792 2.2559e-08  
q 1.761072824190731 5.0618e-08 au
tp 2456792.587551994012
(2014-May-15.08755199)
1.9626e-05 TDB
node 292.9570671163111 3.5524e-06 deg
peri 49.94848165391382 5.6056e-06 deg
i 9.240247714652567 7.1814e-07 deg
  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
 Jupiter MOID = 2.54227 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.089197983837059E-16 -1.13699592889486E-15 3.842373208762876E-13 1.9827155050628E-15 6.249656635008195E-14 -4.305185465700744E-16
q -1.13699592889486E-15 2.562225053207842E-15 -8.456110701611401E-13 -5.288579020411334E-15 -1.341329958232796E-13 9.800675735952131E-16
tp 3.842373208762876E-13 -8.456110701611401E-13 3.851758037193271E-10 -8.466029508515947E-12 8.196168258571953E-11 6.235928961617782E-14
node 1.9827155050628E-15 -5.288579020411334E-15 -8.466029508515947E-12 1.26195986422301E-11 -1.443328593451779E-11 -1.918673631123862E-12
peri 6.249656635008195E-14 -1.341329958232796E-13 8.196168258571953E-11 -1.443328593451779E-11 3.142234626064555E-11 1.976942279904044E-12
i -4.305185465700744E-16 9.800675735952131E-16 6.235928961617782E-14 -1.918673631123862E-12 1.976942279904044E-12 5.157220821819445E-13

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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