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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2448476915935511 4.0384e-08  
a 2.330971110781359 8.8533e-09 au
q 1.760238215135287 9.3648e-08 au
i 9.226828990379543 4.3598e-06 deg
node 292.8046374716205 2.441e-05 deg
peri 50.49700340736363 2.6105e-05 deg
M 250.6784837012513 1.3607e-05 deg
tp 2459395.236157714374
(2021-Jun-29.73615771)
5.0916e-05 TDB
period 1299.881501724112
3.56
7.4056e-06
2.028e-08
d
yr
n .2769483214604639 1.5778e-09 deg/d
Q 2.90170400642743 1.1021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1803  
   data-arc span      22849 days (62.56 yr)  
   first obs. used      1957-11-25  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:32:23  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2154-Jan-02 03:13 00:07 Eunom 0.0460123007899171 0.0460079594511984 0.0460166440085906 2.53047741737527 2.53047729681131 2507793.634144747 6.71185282776382 518.437291465292 42.1252100785093 -65.8347378831575 148797.174216154 T 26 CATAB v2.0f-lin.ifort 2020-Jun-23 15:32:35 2020-Jun-23 15:32

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