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85509 (1997 UY7)
Classification: Main-belt Asteroid          SPK-ID: 2085509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2167668808644055 4.4743e-08  
a 2.35154432534346 8.6999e-09 au
q 1.841807396724366 1.0294e-07 au
i 1.036541028907954 4.1148e-06 deg
node 288.0837422828017 0.00025253 deg
peri 92.86567495828425 0.0002527 deg
M 104.5605878828555 9.8064e-06 deg
tp 2458617.945163879246
(2019-May-14.44516388)
3.5083e-05 TDB
period 1317.128602583659
3.61
7.3093e-06
2.001e-08
d
yr
n .2733218299973364 1.5168e-09 deg/d
Q 2.861281253962554 1.0586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      9112 days (24.95 yr)  
   first obs. used      1995-02-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53131  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:29  

Additional Information
 Earth MOID = .844922 au 
 Jupiter MOID = 2.60183 au 
 T_jup = 3.525 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456703.5 (2014-Feb-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217300431510008 4.4932e-08  
q 1.840120373764293 1.0345e-07 au
tp 2457298.329319773823
(2015-Oct-02.82931977)
3.2928e-05 TDB
node 288.4827877122305 0.00025284 deg
peri 92.02914680509575 0.00025301 deg
i 1.035783197645094 4.114e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      9112 days (24.95 yr)  
   first obs. used      1995-02-21  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53131  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:29  

Additional Information
 Jupiter MOID = 2.60183 au 
 T_jup = 3.525 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.01884992714285E-15 -4.639689960480946E-15 4.765247730905259E-14 5.000576418317797E-16 -5.478450056557742E-14 -7.8315082953038E-16
q -4.639689960480946E-15 1.070271962423395E-14 -7.270793083300545E-14 -1.081451299660323E-15 1.299065553870714E-13 1.79180887987102E-15
tp 4.765247730905259E-14 -7.270793083300545E-14 1.08422251640503E-9 -4.241421699583848E-12 3.159253078737208E-10 -1.287131251578662E-13
node 5.000576418317797E-16 -1.081451299660323E-15 -4.241421699583848E-12 6.392855122111455E-8 -6.39189232178368E-8 2.908863162947488E-11
peri -5.478450056557742E-14 1.299065553870714E-13 3.159253078737208E-10 -6.39189232178368E-8 6.401222060049654E-8 -2.909703475072514E-11
i -7.8315082953038E-16 1.79180887987102E-15 -1.287131251578662E-13 2.908863162947488E-11 -2.909703475072514E-11 1.692528946802563E-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 16.0   n/a MPO502665  

85509 (1997 UY7)          Discovered 1997-Oct-28 by Sarounova, L. at Ondrejov
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 UY7 = 1995 EV1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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