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249157 (2008 BU9)
Classification: Main-belt Asteroid          SPK-ID: 2249157
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05704566991157938 7.5888e-08  
a 3.11757150763237 4.2598e-08 au
q 2.939727552482229 2.5932e-07 au
i 4.191135568985788 9.5648e-06 deg
node 15.32880259028564 8.1957e-05 deg
peri 295.2339617198004 0.00011439 deg
M 276.3673582786304 8.0492e-05 deg
tp 2459467.585490642648
(2021-Sep-10.08549064)
0.00044988 TDB
period 2010.587889732864
5.50
4.1209e-05
1.128e-07
d
yr
n .1790521080119662 3.6698e-09 deg/d
Q 3.295415462782511 4.5028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      7116 days (19.48 yr)  
   first obs. used      2000-11-02  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61342  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:41:01  

Additional Information
 Earth MOID = 1.92873 au 
 Jupiter MOID = 1.87813 au 
 T_jup = 3.210 
[ show covariance matrix ]

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 15.8   n/a MPO433632  
diameter diameter 4.091 km 2.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249157 (2008 BU9)          Discovered 2008-Jan-16 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ 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
1929-Aug-22 05:11 00:05 Jupiter 1.86644631578997 1.86644556068923 1.8664470708906 3.09877072725821 2.94868593692111 2425845.715997738 5.3067425789207 74.8373076123714 34.0573346809682 88.8638987797321 1864628.67983705 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
1939-Nov-08 17:32 00:05 Jupiter 1.92243968110927 1.92243864854043 1.92244071368106 3.81446166474072 3.69715057541496 2429576.230480117 4.52199049261839 213.897251769605 34.0752600259643 -83.2627818219206 1722951.68990276 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2001-Oct-06 16:27 < 00:01 Jupiter 1.9256921350885 1.92569148685656 1.92569278332066 3.03959295256332 2.89126585140859 2452189.185373603 0.903769116612154 83.6904937541155 19.0053048835945 -79.3297775504093 2340398.76994603 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2011-Dec-18 23:53 < 00:01 Jupiter 1.86974591735957 1.86974510821661 1.86974672650242 3.37356370312944 3.23649540707804 2455914.495374909 0.427738602698876 65.519128658045 27.0804510992098 -77.1205830562895 1728900.84270814 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2084-Feb-02 10:28 00:04 Jupiter 1.88603684618364 1.88603605380284 1.88603763856434 3.08003563581207 2.93059992939373 2482257.935982230 4.3730378999548 74.2918055131667 32.0869069321821 -84.0710640882828 2082499.87827657 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2094-Apr-19 10:33 00:05 Jupiter 1.91860181281288 1.91860050286737 1.91860312276438 3.7675817347941 3.64852216901075 2485986.939854676 4.88977591694814 233.048288216187 33.1127081753563 -79.8464614997466 1694336.46620203 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2156-Mar-20 04:51 00:09 Jupiter 1.94748511953888 1.94748344029746 1.94748679878007 3.08232646064315 2.93783483561708 2508601.702398788 8.72179748191066 94.5443019404588 57.3197010344693 -60.4243567172377 1266976.27621406 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2166-May-31 12:17 00:09 Jupiter 1.88128418334132 1.88128329928714 1.88128506739732 3.32516884098676 3.18689113868023 2512326.012036297 9.45084920198146 201.545521785539 29.1366736187421 -89.4741657002232 1680388.98730934 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
2176-Aug-25 05:46 00:10 Jupiter 1.99791711549639 1.99791441676213 1.99791981426087 4.17300843400449 4.07014665949364 2516064.740021824 9.66857650165748 435.241390058507 36.8624906450009 -74.7460527396233 1856027.41043955 T 13 CATAB v2.0f-lin.ifort 2020-May-21 13:41:15 2020-May-21 13:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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