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5331 Erimomisaki (1990 BT1)
Classification: Main-belt Asteroid          SPK-ID: 2005331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3883549501606122 2.6887e-08  
a 2.76950687532174 1.1833e-08 au
q 1.693955170786693 7.8123e-08 au
i 12.10115365564176 5.8425e-07 deg
node 109.7190566695992 2.1654e-06 deg
peri 283.0040028400994 2.6694e-06 deg
M 316.6240707437048 4.166e-06 deg
tp 2459403.337565524859
(2021-Jul-07.83756552)
2.0521e-05 TDB
period 1683.457273214536
4.61
1.0789e-05
2.954e-08
d
yr
n .2138456411861202 1.3705e-09 deg/d
Q 3.845058579856786 1.6429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2083  
   data-arc span      13082 days (35.82 yr)  
   first obs. used      1984-12-23  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:35:49  

Additional Information
 Earth MOID = .748362 au 
 Jupiter MOID = 1.79971 au 
 T_jup = 3.194 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456856.5 (2014-Jul-18.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3918422139715431 2.7056e-08  
q 1.680188955071436 7.8592e-08 au
tp 2456046.493245029248
(2012-Apr-28.99324503)
1.2849e-05 TDB
node 109.7930609331599 2.1688e-06 deg
peri 283.2030961802959 2.6473e-06 deg
i 12.10051674985059 5.8472e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2083  
   data-arc span      13082 days (35.82 yr)  
   first obs. used      1984-12-23  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45839  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 17:35:49  

Additional Information
 Jupiter MOID = 1.79971 au 
 T_jup = 3.194 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.320497940871855E-16 -2.119612314271733E-15 -1.264832155329149E-13 -1.474824708790273E-14 3.056162749366897E-14 2.780522745351953E-15
q -2.119612314271733E-15 6.176653565357061E-15 3.156226073614861E-13 4.276813370892138E-14 -8.977123123949292E-14 -8.041086602762983E-15
tp -1.264832155329149E-13 3.156226073614861E-13 1.650886686466314E-10 4.110121643328712E-12 7.282726352286822E-12 -3.515592184251835E-13
node -1.474824708790273E-14 4.276813370892138E-14 4.110121643328712E-12 4.703595849152947E-12 -4.429247481353801E-12 -8.513326892008459E-13
peri 3.056162749366897E-14 -8.977123123949292E-14 7.282726352286822E-12 -4.429247481353801E-12 7.008196884143122E-12 9.676632351578635E-13
i 2.780522745351953E-15 -8.041086602762983E-15 -3.515592184251835E-13 -8.513326892008459E-13 9.676632351578635E-13 3.419016116432817E-13

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 12.62   n/a E2021B10  
diameter diameter 9.208 km 0.323 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 24.26 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Boe, C.; Durkee, R.I.; Casulli, S.; Vincent, F.; Higgins, D. (2008) Minor Planet Bull. 35, 143.]
geometric albedo albedo 0.202   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5331 Erimomisaki (1990 BT1)          Discovered 1990-Jan-27 by Endate and Watanabe at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 BT1 = 1984 YY2 = 2019 FG5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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