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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03503788151331993 5.5591e-08  
a 2.754239667163218 2.4133e-08 au
q 2.657736944045868 1.5301e-07 au
i 5.112348569143561 5.9319e-06 deg
node 323.9782444962392 5.7382e-05 deg
peri 16.59694997556973 9.6673e-05 deg
M 104.4377109473812 7.6304e-05 deg
tp 2458716.153836828468
(2019-Aug-20.65383683)
0.000354 TDB
period 1669.556113017469
4.57
2.1943e-05
6.008e-08
d
yr
n .2156261758398493 2.834e-09 deg/d
Q 2.850742390280569 2.4978e-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 = 1.64667 au 
 Jupiter MOID = 2.30378 au 
 T_jup = 3.338 
[ 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 = 2.30378 au 
 T_jup = 3.338 
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

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