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37631 (1993 TT27)
Classification: Main-belt Asteroid          SPK-ID: 2037631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1807228057105565 4.5153e-08  
a 2.24010514140172 9.7212e-09 au
q 1.835267055160958 1.052e-07 au
i 5.793562940973079 5.399e-06 deg
node 179.6102188985655 3.5672e-05 deg
peri 132.6306602031231 3.7966e-05 deg
M 30.4648115932378 1.4052e-05 deg
tp 2458896.867248996873
(2020-Feb-17.36724900)
4.7587e-05 TDB
period 1224.619106766669
3.35
7.9716e-06
2.183e-08
d
yr
n .293968955743716 1.9136e-09 deg/d
Q 2.644943227642482 1.1478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      901  
   data-arc span      9345 days (25.59 yr)  
   first obs. used      1993-10-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .553  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:01:08  

Additional Information
 Earth MOID = .827444 au 
 Jupiter MOID = 2.64298 au 
 T_jup = 3.607 
[ 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 15.8   n/a MPO474232  
rotation period rot_per 6.242 h n/a LCDB (Rev. 2019-August); 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.]

37631 (1993 TT27)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 TT27 = 1999 JF87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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