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181671 (2008 BO22)
Classification: Main-belt Asteroid          SPK-ID: 2181671
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03504690647931331 5.5567e-08  
a 2.754573871024731 2.421e-08 au
q 2.658034578176567 1.53e-07 au
i 5.112371089754303 5.9321e-06 deg
node 323.9778512154784 5.7377e-05 deg
peri 16.85391901413457 9.668e-05 deg
M 146.4280055592664 7.6306e-05 deg
tp 2458717.293695333572
(2019-Aug-21.79369533)
0.00035411 TDB
period 1669.860002162956
4.57
2.2015e-05
6.027e-08
d
yr
n .2155869351524648 2.8422e-09 deg/d
Q 2.851113163872895 2.5059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      7045 days (19.29 yr)  
   first obs. used      2001-09-28  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58669  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:33  

Additional Information
 Earth MOID = 1.64817 au 
 Jupiter MOID = 2.30271 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457275.5 (2015-Sep-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03703179446052463 5.6056e-08  
q 2.651678619731992 1.5466e-07 au
tp 2457039.026479235008
(2015-Jan-16.52647923)
0.00033185 TDB
node 324.1549658638305 5.7327e-05 deg
peri 14.75435297839308 9.2637e-05 deg
i 5.115617753263247 5.9355e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      7045 days (19.29 yr)  
   first obs. used      2001-09-28  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58669  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:33  

Additional Information
 Jupiter MOID = 2.30271 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.14230104305335E-15 -8.571093174434118E-15 -1.853464346327387E-12 -2.486224494940446E-15 -4.792428401971443E-13 -2.304806126857901E-15
q -8.571093174434118E-15 2.39181975419583E-14 4.488807712256712E-12 4.954504638255557E-15 1.196514372246823E-12 7.45375360692786E-15
tp -1.853464346327387E-12 4.488807712256712E-12 1.101214718227891E-7 2.93476470819023E-11 2.416944872788195E-8 -1.514669947932703E-11
node -2.486224494940446E-15 4.954504638255557E-15 2.93476470819023E-11 3.286395621655356E-9 -3.266437830451802E-9 2.672579688032285E-11
peri -4.792428401971443E-13 1.196514372246823E-12 2.416944872788195E-8 -3.266437830451802E-9 8.581575616380276E-9 -2.989113982746928E-11
i -2.304806126857901E-15 7.45375360692786E-15 -1.514669947932703E-11 2.672579688032285E-11 -2.989113982746928E-11 3.523041099301907E-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 16.35   n/a MPCxxxxx  

181671 (2008 BO22)          Discovered 2008-Jan-31 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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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
2068-Apr-08 05:17 00:01 Thisb 0.0451055114249781 0.0450799456975512 0.0451310776787129 2.97169897393388 2.97169892306639 2476479.720094924 1.46112908847293 1297.07784181897 101.185064619706 -10.897448384597 13588.2726649217 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:31:34 2021-Apr-13 21:31
2120-Dec-09 14:26 00:03 Thisb 0.0488691333964088 0.0488665640115047 0.0488717231034662 2.77073530184167 2.77073525148638 2495717.101649729 2.58160321747039 2647.16773418251 103.399214988328 -88.3344333684185 70592.0515401012 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:31:34 2021-Apr-13 21:31

Alternate Designations
 2008 BO22 = 2006 WL64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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