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414287 (2008 OB9)
Classification: Apollo [NEO, PHA]          SPK-ID: 2414287
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7586891345845039 3.3374e-08  
a 3.206448787545069 3.4186e-08 au
q .7737509318329686 1.0715e-07 au
i 13.49513272688086 1.5454e-05 deg
node 202.6964807089012 2.9212e-05 deg
peri 238.5888762255127 2.8631e-05 deg
M 22.22902757077256 6.8631e-06 deg
tp 2459071.005043990355
(2020-Aug-09.50504399)		 3.799e-05 TDB
period 2097.17604672763
5.74		 3.3539e-05
9.182e-08		 d
yr
n .1716594086422706 2.7453e-09 deg/d
Q 5.639146643257169 6.0123e-08 au
   Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      2457 days (6.73 yr)  
   first obs. used      2008-07-29  
   last obs. used      2015-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46289  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:18:04  

Additional Information
 Earth MOID = .0102945 au 
 Jupiter MOID = .818161 au 
 T_jup = 2.617 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456581.5 (2013-Oct-16.0) TDB
Reference: JPL 89 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7574523197368683 3.2977e-08  
q .7797740461753162 1.0541e-07 au
tp 2456970.999631221662
(2014-Nov-09.49963122)		 1.2916e-05 TDB
node 203.0255655058763 2.9082e-05 deg
peri 238.1878921782112 2.8631e-05 deg
i 13.50657916324441 1.5449e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      2457 days (6.73 yr)  
   first obs. used      2008-07-29  
   last obs. used      2015-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46289  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:18:04  

Additional Information
 Jupiter MOID = .818161 au 
 T_jup = 2.617 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.087492773025278E-15 -3.464487749530851E-15 -2.197769980472951E-13 -1.553273773332049E-13 6.34068571164546E-15 -2.916816989922352E-14
q -3.464487749530851E-15 1.111151568767608E-14 7.151050544586507E-13 5.007582723161383E-13 -2.958907022910114E-14 8.13580953902388E-14
tp -2.197769980472951E-13 7.151050544586507E-13 1.668254933617676E-10 1.68721888512271E-11 7.169588050971757E-11 1.317774250328411E-11
node -1.553273773332049E-13 5.007582723161383E-13 1.68721888512271E-11 8.457347304941774E-10 -7.892833522797691E-10 -2.346914629923351E-10
peri 6.34068571164546E-15 -2.958907022910114E-14 7.169588050971757E-11 -7.892833522797691E-10 8.197166249127743E-10 2.386860116679756E-10
i -2.916816989922352E-14 8.13580953902388E-14 1.317774250328411E-11 -2.346914629923351E-10 2.386860116679756E-10 2.386598083750675E-10

[ 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 17.7   n/a MPO339286  
diameter diameter 1.974 km 0.948 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 42.5 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:
[Warner, B.D. (2015) Minor Planet Bull. 42, 41-53.]
geometric albedo albedo 0.038   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

414287 (2008 OB9)          Discovered 2008-Jul-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-11-10

[ 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
1919-Jan-14 16:51 00:05 Earth 0.239482187821967 0.239477621892073 0.23948675462994 13.3356915079183 13.3348571792148 2421973.202200992 4.83820066373388 768.432110867206 38.890760223397 73.0051569195327 815834.514285948 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1960-Jul-01 16:32 < 00:01 Jupiter 1.93628686761816 1.93628541240439 1.93628832283753 11.7985071540707 11.7613722601683 2437117.188567064 0.817761185202379 277.324761276624 57.0849681499027 -80.6504102889069 3684224.12463466 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1961-Oct-01 15:30 < 00:01 Earth 0.373999634291117 0.373987554945775 0.374011713636438 26.3463930312712 26.3461226215866 2437574.145652639 0.977619474224217 602.34673089012 15.3762639417934 -0.193113507411096 88412.8706231846 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1967-Oct-13 06:31 00:01 Earth 0.178165263496325 0.178151633238956 0.178178893756792 20.9738170318708 20.9731039831097 2439776.771196079 1.28359773736359 680.694663533047 15.49267486998 3.13688179778343 96658.7079491626 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1972-Jun-12 23:37 < 00:01 Jupiter 1.62458980733996 1.62458757780865 1.62459203687173 10.5862594632023 10.5368940847821 2441481.484084208 0.754614725875851 277.340683698786 109.136399770508 -85.7896320264212 1705529.23194161 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1973-Oct-10 04:19 00:01 Earth 0.175111392413304 0.175098280069578 0.175124504757369 21.5607895229285 21.5600837899647 2441965.679779977 1.21869227053843 653.972580043357 16.0554450007854 1.10901132427041 48467.8414915393 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1979-Sep-23 15:14 < 00:01 Earth 0.470239933617179 0.470229094614182 0.470250772620416 29.9144258311074 29.9142364164631 2444140.134660160 0.851944253392712 540.764213882534 16.9675219925808 -1.81143860495445 174914.378708019 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1984-Apr-24 08:04 < 00:01 Jupiter 1.584919496584 1.58491675768788 1.58492223548057 10.4129867199094 10.3615365662597 2445814.836119405 0.559549675268734 216.70328068229 131.103998370784 77.4964356659866 1376125.09713111 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
1996-Feb-11 09:49 < 00:01 Jupiter 1.76640815816242 1.76640527143565 1.76641104489 11.1928201122171 11.1498963367006 2450124.908738196 0.41478581068461 187.505397411532 124.072553092512 58.948155363973 1464652.76506803 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2014-Oct-01 01:30 < 00:01 Earth 0.202521225258721 0.202520645378624 0.202521805138853 24.2105719545823 24.2100285270532 2456931.562459120 0.0616114418028393 29.2861051825342 16.886838374457 -11.1833182985207 1046586.14332623 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2032-Mar-05 07:05 < 00:01 Earth 0.36254772719549 0.362543314315603 0.362552140097738 27.2444836487812 27.2442138930139 2463296.795056501 0.390982686293229 262.590384709011 29.6300926599049 33.3105027350221 970775.431969356 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2054-Oct-09 11:19 < 00:01 Earth 0.0484876106470831 0.0484791305520752 0.0484960909279527 20.3403447307034 20.3376429374777 2471549.971297126 0.945588029431358 448.630698439119 16.9007378146259 -19.5270042160161 141846.8087219 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2066-Mar-17 07:17 00:01 Venus 0.144361205622423 0.144352207937138 0.144370203663717 18.9355994363577 18.9348050194157 2475726.803791810 1.03384293366306 574.002106614403 23.7107131903376 38.6269600821468 525633.830309094 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2071-Nov-26 21:44 00:05 Earth 0.254258461800749 0.25424999751739 0.254266926214763 15.4709694409174 15.4702920662968 2477807.405555462 5.19515385066178 510.831074606347 19.8792933780856 34.3140584928298 959347.532105085 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2090-Jun-01 21:49 00:02 Jupiter 1.75249974694311 1.75248647865536 1.75251301525756 12.8040037058979 12.7662001374674 2484569.408851646 2.01958649260671 748.647229410874 146.116854742198 -28.8309743758934 638662.999631044 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2094-Oct-01 05:54 00:04 Earth 0.230830414713371 0.230784522113886 0.230876307324703 24.7005458035335 24.7000784808268 2486151.745545202 3.77302189039065 2289.96332830828 17.8445775042199 -2.07902631586703 68369.0639391423 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2102-Feb-16 15:15 00:02 Jupiter 1.25147578219635 1.25146492005465 1.25148664439774 10.9107126909223 10.8485028247363 2488846.135619838 1.67293651508151 705.408124620977 156.873223541021 -41.4585233322361 614446.268451651 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2113-Dec-09 20:07 00:01 Jupiter 1.09122143836143 1.09121563860777 1.09122723814449 10.2292344212318 10.1530688327056 2493160.338349434 1.09748468962083 443.408689034298 154.253233039696 -54.3659804735684 690014.20547328 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2125-Nov-03 21:20 < 00:01 Jupiter 1.2440094157688 1.24400765615918 1.24401117540063 10.8467611209379 10.7838056635095 2497507.388817910 0.967742574105812 288.468699998968 25.5859718910673 -73.1982006527293 4961908.62092712 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2137-Nov-08 20:54 00:02 Jupiter 1.79589251477063 1.79588410302946 1.7959009265315 12.8308832421386 12.7940719132008 2501895.370509103 1.70751241092913 521.273516126908 117.488027766018 -37.7734831125424 1068152.90035304 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2154-Nov-13 14:53 00:12 Earth 0.131474513803791 0.131444459780295 0.131504570708807 12.1975874879559 12.1959258881871 2508109.119907836 12.1298316782683 1785.70340789356 27.9767330010961 -32.9291714800807 428770.56037285 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
2185-Oct-24 15:55 00:07 Earth 0.149452649809553 0.149399017297332 0.149506294609655 17.5568697430025 17.5558542563718 2519412.163384042 7.25478721436833 3423.69821116334 31.6176627021498 38.630103764579 414445.468856192 T 89 CATAB v2.0f-lin.ifort 2019-Dec-21 06:18:27 2019-Dec-21 06:18
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