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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 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1912-Mar-01 11:37 00:02 Jupiter 1.87840392469184 1.87840288730859 1.87840496207465 1.26238511577615 0.831722760667575 2419462.984349989 2.00771259850769 359.183446670714 125.191716909764 24.1280192501254 1770631.35768292 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
1937-Jan-16 19:59 00:01 Jupiter 1.73410452584277 1.73410418680246 1.73410486488614 1.44264227756506 1.05086522210444 2428550.332377933 1.44242374206467 283.458119748348 64.379987320937 49.8618187939282 3590168.85143873 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
1961-Dec-05 11:13 00:01 Jupiter 1.90872549863326 1.90872475552492 1.90872624174137 2.47122348058676 2.28460471353175 2437638.967267689 1.01507917215193 55.2481042263859 14.7590363387989 79.7738976594554 1544148.51888699 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
2019-Jun-05 05:13 < 00:01 Jupiter 1.78280767251043 1.78280737405682 1.78280797096496 1.23369858365353 0.756174794441224 2458639.717557427 0.194245371105717 367.917856769892 124.527458451128 25.2393805368232 2832578.939638 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
2044-Apr-16 13:08 < 00:01 Jupiter 1.75861667378574 1.7586162878151 1.75861705975669 1.74772499317433 1.44611892637645 2467722.047244070 0.592286424845338 127.91508802163 31.5161417732485 63.0982188643775 3142368.61981949 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
2101-Oct-13 16:47 00:02 Jupiter 1.96062928558766 1.96062830014409 1.96063027102967 1.51585308859796 1.19740524083872 2488720.199391667 1.70187105710721 91.9584842462263 62.0937055262584 10.24450669691 1345961.11405851 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
2126-Sep-04 04:45 00:02 Jupiter 1.72555342720054 1.72555300242281 1.72555385197827 1.38580878125793 0.968878662132609 2497811.697831222 2.07535332426123 332.687206968394 75.9230843845838 44.353080785197 3710696.35207885 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01
2151-Jul-19 16:25 00:03 Jupiter 1.8245184625751 1.82451731429489 1.82451961085418 2.11635168124143 1.88426526885555 2506896.183982150 2.63087012180182 82.8493991291364 23.0214598434362 79.0531465847727 927758.102010521 T 26 CATAB v2.0g-lin.ifort 2021-Aug-25 16:01:28 2021-Aug-25 16:01

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