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240 Vanadis (A884 QB)
Classification: Main-belt Asteroid          SPK-ID: 2000240
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2078088387015235 3.6338e-08  
a 2.664311208317503 6.6117e-09 au
q 2.11064379017759 9.8486e-08 au
i 2.105548443300199 3.6048e-06 deg
node 115.0679674566883 0.0001013 deg
peri 300.9969460390165 0.00010165 deg
M 16.70553489782938 8.992e-06 deg
tp 2458926.788756162743
(2020-Mar-18.28875616)
3.9533e-05 TDB
period 1588.458432711446
4.35
5.9128e-06
1.619e-08
d
yr
n .2266348256815835 8.4362e-10 deg/d
Q 3.217978626457416 7.9857e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3037  
   data-arc span      49696 days (136.06 yr)  
   first obs. used      1884-08-29  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:24:41  

Additional Information
 Earth MOID = 1.12343 au 
 Jupiter MOID = 2.1412 au 
 T_jup = 3.352 
[ 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 9.1   n/a MPO502155 IRAS observations used: 9
diameter diameter 87.928 km 1.616 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 10.64 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Denchev, P. (1999) Abstracts of ACM 1999, 117.]
[Denchev, P. (2000) Planet. Space Sci. 48, 987-992.]
[Alton, K.B. (2016) Minor Planet Bull. 43, 217-218.]
geometric albedo albedo 0.031   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
B-V BV 0.705   0.011 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=.73, mean=8.50, max.=15.96) deg.
U-B UB 0.368   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=.73, mean=8.50, max.=15.96) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B C   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)

240 Vanadis (A884 QB)          Discovered 1884-Aug-27 by Borrelly, A. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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