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30888 Okitsumisaki (1993 BG2)
Classification: Main-belt Asteroid          SPK-ID: 2030888
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2367440980000119 3.0932e-08  
a 2.86873404520281 1.2108e-08 au
q 2.189578191269345 9.1337e-08 au
i 4.106212332858455 4.4191e-06 deg
node 323.0373109126578 4.3467e-05 deg
peri 118.3281795269705 4.4424e-05 deg
M 333.1454245817524 1.019e-05 deg
tp 2459528.888312906215
(2021-Nov-10.38831291)
5.0654e-05 TDB
period 1774.736405396778
4.86
1.1236e-05
3.076e-08
d
yr
n .20284702500342 1.2842e-09 deg/d
Q 3.547889899136274 1.4974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1493  
   data-arc span      10227 days (28.00 yr)  
   first obs. used      1993-01-19  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:50:20  

Additional Information
 Earth MOID = 1.20897 au 
 Jupiter MOID = 1.72675 au 
 T_jup = 3.253 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457323.5 (2015-Oct-28.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2362609257594034 3.0245e-08  
q 2.193610528547555 8.8975e-08 au
tp 2457739.295716475743
(2016-Dec-16.79571648)
4.5421e-05 TDB
node 323.8593118084968 4.3848e-05 deg
peri 115.7469882439407 4.476e-05 deg
i 4.084745572658484 4.4021e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1493  
   data-arc span      10227 days (28.00 yr)  
   first obs. used      1993-01-19  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50519  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:50:20  

Additional Information
 Jupiter MOID = 1.72675 au 
 T_jup = 3.253 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.147540860415313E-16 -2.676247098668285E-15 -5.500419305870742E-14 -1.123200478496287E-15 3.264459691819986E-14 -4.445917580535002E-16
q -2.676247098668285E-15 7.916475604220245E-15 3.495043063011636E-13 4.069562556413024E-15 -6.56904667416702E-14 1.558446276799205E-15
tp -5.500419305870742E-14 3.495043063011636E-13 2.063043715177543E-9 1.575818711876238E-12 4.090903041627888E-10 6.117250011384963E-13
node -1.123200478496287E-15 4.069562556413024E-15 1.575818711876238E-12 1.922666546804828E-9 -1.917458376158682E-9 2.846865381467379E-11
peri 3.264459691819986E-14 -6.56904667416702E-14 4.090903041627888E-10 -1.917458376158682E-9 2.003425856296834E-9 -2.839280907972201E-11
i -4.445917580535002E-16 1.558446276799205E-15 6.117250011384963E-13 2.846865381467379E-11 -2.839280907972201E-11 1.937833370018754E-11

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 13.97   n/a E2021B10  
diameter diameter 9.203 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.975 h n/a LCDB (Rev. 2020-October); 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.]
geometric albedo albedo 0.069   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30888 Okitsumisaki           Discovered 1993 Jan. 19 by T. Seki at Geisei.
Okitsumisaki in western Kochi prefecture is a small promontory jutting into the Pacific Ocean. It is a well-known scenic spot with popular swimming beaches.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120703/MPCPages.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 1993 BG2 = 2001 QR235 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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