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160961 (2002 AW178)
Classification: Main-belt Asteroid          SPK-ID: 2160961
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348700199991965 5.1336e-08  
a 2.304105068688527 1.3804e-08 au
q 1.993350371994255 1.169e-07 au
i 7.288250406098638 5.2516e-06 deg
node 122.1289695297288 3.8887e-05 deg
peri 240.4344851703495 4.2687e-05 deg
M 214.2522467802844 1.95e-05 deg
tp 2459517.691303503723
(2021-Oct-30.19130350)
7.149e-05 TDB
period 1277.47334108581
3.50
1.148e-05
3.143e-08
d
yr
n .2818062721324673 2.5326e-09 deg/d
Q 2.614859765382799 1.5666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      9216 days (25.23 yr)  
   first obs. used      1995-02-02  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:37:21  

Additional Information
 Earth MOID = 1.00135 au 
 Jupiter MOID = 2.83717 au 
 T_jup = 3.566 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457286.5 (2015-Sep-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342030407442407 5.1374e-08  
q 1.995280257056692 1.1691e-07 au
tp 2456960.175376591348
(2014-Oct-29.67537659)
6.305e-05 TDB
node 122.1949872162454 3.8843e-05 deg
peri 239.9446871000034 4.2687e-05 deg
i 7.291433277078297 5.255e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      9216 days (25.23 yr)  
   first obs. used      1995-02-02  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:37:21  

Additional Information
 Jupiter MOID = 2.83717 au 
 T_jup = 3.566 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.639267284200934E-15 -5.975563240794606E-15 -2.361186210908046E-13 1.494184785712903E-14 -1.295790379299426E-13 2.13002150122351E-16
q -5.975563240794606E-15 1.366903794767951E-14 7.182963843767815E-13 -3.441759197771703E-14 3.48654175871047E-13 -2.79464140498299E-16
tp -2.361186210908046E-13 7.182963843767815E-13 3.975278141147591E-9 -2.828162259223764E-11 1.13584119250008E-9 5.214027332373735E-13
node 1.494184785712903E-14 -3.441759197771703E-14 -2.828162259223764E-11 1.508765217826668E-9 -1.504298240439397E-9 5.231257883445083E-11
peri -1.295790379299426E-13 3.48654175871047E-13 1.13584119250008E-9 -1.504298240439397E-9 1.822151974991217E-9 -5.179356611568132E-11
i 2.13002150122351E-16 -2.79464140498299E-16 5.214027332373735E-13 5.231257883445083E-11 -5.179356611568132E-11 2.761465132399799E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO314391  

160961 (2002 AW178)          Discovered 2002-Jan-14 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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