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212953 (2009 BU44)
Classification: Main-belt Asteroid          SPK-ID: 2212953
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01433155171379214 4.0256e-08  
a 3.144135313679288 3.3245e-08 au
q 3.099074975836133 1.3339e-07 au
i 3.180727423401027 6.6123e-06 deg
node 314.028552135418 9.0411e-05 deg
peri 310.5861532096702 0.00028754 deg
M 255.9787898585842 0.00027536 deg
tp 2459588.895944403822
(2022-Jan-09.39594440)
0.0015602 TDB
period 2036.339893540992
5.58
3.2297e-05
8.842e-08
d
yr
n .1767877755289643 2.804e-09 deg/d
Q 3.189195651522442 3.3722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      9009 days (24.67 yr)  
   first obs. used      1995-08-22  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54594  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:58  

Additional Information
 Earth MOID = 2.08424 au 
 Jupiter MOID = 1.81678 au 
 T_jup = 3.207 
[ 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 15.6   n/a MPO418140  
diameter diameter 4.486 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212953 (2009 BU44)          Discovered 2009-Jan-16 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ 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
1929-Oct-07 21:38 00:04 Jupiter 1.87166039236904 1.87165956946537 1.87166121527368 3.16734978245377 3.02109282553949 2425892.401656111 4.28656083377517 118.207124838024 25.5048188323398 80.2153097303518 2903633.83228261 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
1940-Mar-09 19:25 00:04 Jupiter 1.81866769242716 1.81866708187885 1.81866830297662 3.06760439235093 2.91182431812933 2429698.309067240 3.78726246184956 164.239533136484 17.9539871372671 -87.8424749670849 2494426.97672429 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
1950-Aug-17 19:34 00:03 Jupiter 1.92203818958085 1.9220371736579 1.92203920550479 3.67260164799424 3.55058071008718 2433511.314968174 3.11574364704215 112.626857681467 29.6124181704608 -74.5499319446823 2153952.0134179 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
2024-May-15 05:00 < 00:01 Jupiter 1.84991109178406 1.84991065694508 1.84991152662313 3.08733877723621 2.93528817989915 2460445.708036027 0.46845409838706 59.756334402871 12.8840574984216 -79.9114001114903 3391110.08771065 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
2034-Oct-14 22:39 < 00:01 Jupiter 1.83650730477811 1.83650669027796 1.83650791927826 3.18236660512372 3.0339791703456 2464250.443450116 0.983925345157099 65.6632843616367 19.818453370092 -83.0779476978517 2260663.17240911 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
2045-Mar-26 20:29 00:01 Jupiter 1.97661192188263 1.97661122555244 1.97661261821283 3.88115696734768 3.76912915321924 2468066.353559461 1.45965198159942 59.3360617760976 28.8209760132264 -81.8827232366877 2439271.07525842 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
2108-Jul-10 19:12 00:04 Jupiter 1.95009831103326 1.95009722355873 1.95009939850824 3.46065646677377 3.33278351162113 2491182.299713322 4.41181886716098 94.4691077327933 32.307837643045 69.4656729265644 2173499.58865733 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
2118-Dec-20 13:47 00:05 Jupiter 1.83071770577659 1.83071708900956 1.83071832254455 3.03036887774557 2.87363720355334 2494997.074629522 5.14008243987051 159.873109860148 20.3428005486975 86.6147195055885 2872998.76323912 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
2129-May-22 16:51 00:06 Jupiter 1.85713714998661 1.85713620424165 1.85713809574022 3.31974059610225 3.17938621879324 2498803.202252027 5.65228286292861 277.002299182967 22.438154433916 -84.9090391806036 2222780.40950197 T 14 CATAB v2.0f-lin.ifort 2020-May-21 08:52:07 2020-May-21 08:52
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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