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137052 Tjelvar (1998 VO33)
Classification: Apollo [NEO]          SPK-ID: 2137052
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 157 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8094780738191732 3.8081e-08  
a 1.247979284837661 4.043e-09 au
q .2377674171810419 4.7938e-08 au
i 14.91398763161223 7.1415e-06 deg
node 64.31213240560231 1.0947e-05 deg
peri 209.8826713394201 1.2153e-05 deg
M 150.9295079353323 1.659e-05 deg
tp 2457187.008225451565
(2015-Jun-13.50822545)
2.2603e-05 JED
period 509.2247360295304
1.39
2.4745e-06
6.775e-09
d
yr
n .7069570162811637 3.4354e-09 deg/d
Q 2.258191152494281 7.3156e-09 au
  Orbit Determination Parameters
   # obs. used (total)      809  
   data-arc span      6271 days (17.17 yr)  
   first obs. used      1998-11-15  
   last obs. used      2016-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57497  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-16 06:28:00  

Additional Information
 Earth MOID = .0685664 au 
 Jupiter MOID = 2.90917 au 
 T_jup = 4.725 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0 mag n/a MPO359698  
rotation period rot_per 9.02 h n/a LCDB (Rev. 2015-December); 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:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
SMASSII spectral type spec_B V   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)

137052 Tjelvar           Discovered 1998 Nov. 15 by C.-I. Lagerkvist at the European Southern Observatory.
According to the 13th-century Gutnic saga, Tjelvar was the first inhabitant of Gotland. By making a fire, he prevented the island from disappearing into the sea during the night.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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