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JPL Small-Body Database Browser
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1331 Solvejg (1933 QS)
Classification: Main-belt Asteroid          SPK-ID: 2001331
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190610165336084 3.4373e-08  
a 3.097608593237754 1.3753e-08 au
q 2.507172907134231 1.0779e-07 au
i 3.101106301866269 3.9362e-06 deg
node 121.3389630446605 7.0755e-05 deg
peri 185.1560295691873 7.1503e-05 deg
M 254.3251825374988 1.2627e-05 deg
tp 2459185.030588951414
(2020-Dec-01.53058895)
7.2055e-05 TDB
period 1991.307078407596
5.45
1.3261e-05
3.631e-08
d
yr
n .1807857782978826 1.204e-09 deg/d
Q 3.688044279341276 1.6374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3063  
   data-arc span      34022 days (93.15 yr)  
   first obs. used      1926-03-18  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:21:39  

Additional Information
 Earth MOID = 1.49146 au 
 Jupiter MOID = 1.57205 au 
 T_jup = 3.192 
[ 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 10.14   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
diameter diameter 36.824 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 19.30 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Garceran, A.C.; Aznar, A.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 92-97.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.121   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.640   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=11.60 deg.
U-B UB 0.350   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=11.60 deg.
Tholen spectral type spec_T BC:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1331 Solvejg (1933 QS)          Discovered 1933-Aug-25 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1933 QS = 1926 FD = 1928 TH = 1942 ER = 1948 GM 
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