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JPL Small-Body Database Browser
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452101 (2014 QD161)
Classification: Main-belt Asteroid          SPK-ID: 2452101
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2180623550727062 1.09e-07  
a 3.133265286875432 1.2984e-07 au
q 2.450018079351817 3.4296e-07 au
i 16.88023243806475 1.048e-05 deg
node 344.6985818130062 3.0823e-05 deg
peri 325.579193166819 3.5483e-05 deg
M 305.7757395021441 2.9212e-05 deg
tp 2458905.630285104546
(2020-Feb-26.13028510)
0.00018039 TDB
period 2025.788855930642
5.55
0.00012592
3.448e-07
d
yr
n .1777085499044356 1.1047e-08 deg/d
Q 3.816512494399048 1.5816e-07 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      4040 days (11.06 yr)  
   first obs. used      2007-02-25  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:06:22  

Additional Information
 Earth MOID = 1.4548 au 
 Jupiter MOID = 1.62503 au 
 T_jup = 3.110 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457209.5 (2015-Jul-06.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .218069750012082 1.0859e-07  
q 2.448621608355239 3.4061e-07 au
tp 2456884.708554651337
(2014-Aug-15.20855465)
9.7157e-05 TDB
node 344.7307860914466 3.0805e-05 deg
peri 325.9991702942352 3.5461e-05 deg
i 16.89027884862587 1.0482e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      4040 days (11.06 yr)  
   first obs. used      2007-02-25  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:06:22  

Additional Information
 Jupiter MOID = 1.62503 au 
 T_jup = 3.110 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.17914544625301E-14 -3.530271529558655E-14 -4.427251503727034E-13 -3.459769607809557E-14 -2.433545442251379E-13 2.764480355054722E-14
q -3.530271529558655E-14 1.160123670646743E-13 4.195422368917955E-12 1.152700262672545E-13 1.496192732813079E-12 -7.490803704446453E-14
tp -4.427251503727034E-13 4.195422368917955E-12 9.439408063225215E-9 3.864670793500683E-11 1.786312741031655E-9 -1.596966548857689E-11
node -3.459769607809557E-14 1.152700262672545E-13 3.864670793500683E-11 9.489490490605083E-10 -9.005390300469694E-10 -1.086438650552638E-10
peri -2.433545442251379E-13 1.496192732813079E-12 1.786312741031655E-9 -9.005390300469694E-10 1.25745955567182E-9 1.01100538703922E-10
i 2.764480355054722E-14 -7.490803704446453E-14 -1.596966548857689E-11 -1.086438650552638E-10 1.01100538703922E-10 1.098688058009832E-10

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 15.5   n/a MPO437750  

452101 (2014 QD161)          Discovered 2007-Feb-25 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-11-30

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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