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187691 (2008 DT47)
Classification: Main-belt Asteroid          SPK-ID: 2187691
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2195152413041281 5.2025e-08  
a 3.025258960880146 2.6167e-08 au
q 2.361168510075065 1.5152e-07 au
i 2.124062279593399 5.1232e-06 deg
node 64.62138629408567 0.00015927 deg
peri 166.7932684633031 0.00015975 deg
M 117.5042174243899 1.2569e-05 deg
tp 2458573.174105472994
(2019-Mar-30.67410547)
6.4603e-05 TDB
period 1921.950777426698
5.26
2.4935e-05
6.827e-08
d
yr
n .1873096877548573 2.4302e-09 deg/d
Q 3.689349411685227 3.191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      6380 days (17.47 yr)  
   first obs. used      2003-04-28  
   last obs. used      2020-10-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:27  

Additional Information
 Earth MOID = 1.34935 au 
 Jupiter MOID = 1.30616 au 
 T_jup = 3.207 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457770.5 (2017-Jan-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2186513716272149 5.2161e-08  
q 2.365721729103564 1.5183e-07 au
tp 2458574.496975215120
(2019-Mar-31.99697522)
6.4784e-05 TDB
node 64.65200761151266 0.00015905 deg
peri 167.093942936773 0.00015953 deg
i 2.125322501513732 5.125e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      253  
   data-arc span      6380 days (17.47 yr)  
   first obs. used      2003-04-28  
   last obs. used      2020-10-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:27  

Additional Information
 Jupiter MOID = 1.30616 au 
 T_jup = 3.207 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.72081373775552E-15 -7.855974262744177E-15 -2.241499161841527E-13 1.926336053262068E-14 -1.867808367043955E-13 3.474659003369816E-16
q -7.855974262744177E-15 2.305272459609317E-14 9.854591286135886E-13 -5.868341165347609E-14 5.707050696789931E-13 -8.355530285466962E-16
tp -2.241499161841527E-13 9.854591286135886E-13 4.197010443935082E-9 -2.301205346535963E-11 8.34085742001636E-10 4.562566971409064E-14
node 1.926336053262068E-14 -5.868341165347609E-14 -2.301205346535963E-11 2.529540548028684E-8 -2.52823391425718E-8 -1.362584203996908E-10
peri -1.867808367043955E-13 5.707050696789931E-13 8.34085742001636E-10 -2.52823391425718E-8 2.545090388126444E-8 1.361459620208147E-10
i 3.474659003369816E-16 -8.355530285466962E-16 4.562566971409064E-14 -1.362584203996908E-10 1.361459620208147E-10 2.626544235523321E-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 16.28   n/a E2021B55  

187691 (2008 DT47)          Discovered 2008-Feb-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2008 DT47 = 2003 HK32 = 2005 UR32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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