Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2367440980182382 3.0932e-08  
a 2.868734045279351 1.2066e-08 au
q 2.189578191275479 9.1335e-08 au
i 4.106212334507655 4.4108e-06 deg
node 323.0373109129531 4.3467e-05 deg
peri 118.3281795760449 4.4418e-05 deg
M 333.1454245108535 1.0135e-05 deg
tp 2459528.888313261033
(2021-Nov-10.38831326)
5.0375e-05 TDB
period 1774.736405467806
4.86
1.1197e-05
3.066e-08
d
yr
n .2028470249953017 1.2798e-09 deg/d
Q 3.547889899283223 1.4923e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1523  
   data-arc span      10405 days (28.49 yr)  
   first obs. used      1993-01-19  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:01:24  

Additional Information
 Earth MOID = 1.20897 au 
 Jupiter MOID = 1.72675 au 
 T_jup = 3.253 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2362566290266544 3.0245e-08  
q 2.193614910742865 8.8968e-08 au
tp 2457739.299929577240
(2016-Dec-16.79992958)
4.5218e-05 TDB
node 323.8592985821505 4.3848e-05 deg
peri 115.7477335149911 4.4754e-05 deg
i 4.084736059111531 4.3938e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1523  
   data-arc span      10405 days (28.49 yr)  
   first obs. used      1993-01-19  
   last obs. used      2021-07-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50049  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:01:24  

Additional Information
 Jupiter MOID = 1.72675 au 
 T_jup = 3.253 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.147510304504932E-16 -2.67616184185386E-15 -5.472288748614084E-14 -1.125636302603941E-15 3.269338044455182E-14 -4.409518146846246E-16
q -2.67616184185386E-15 7.915266648439863E-15 3.44992437209828E-13 4.101770296236455E-15 -6.647319689448465E-14 1.553693448781848E-15
tp -5.472288748614084E-14 3.44992437209828E-13 2.044690637601861E-9 1.703551181039559E-12 4.059174799890573E-10 6.433294087752572E-13
node -1.125636302603941E-15 4.101770296236455E-15 1.703551181039559E-12 1.922676029579473E-9 -1.917446664210571E-9 2.847044901507065E-11
peri 3.269338044455182E-14 -6.647319689448465E-14 4.059174799890573E-10 -1.917446664210571E-9 2.002888194666018E-9 -2.838897441216189E-11
i -4.409518146846246E-16 1.553693448781848E-15 6.433294087752572E-13 2.847044901507065E-11 -2.838897441216189E-11 1.930528416902055E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-23 07:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin