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85209 (1992 GM3)
Classification: Main-belt Asteroid          SPK-ID: 2085209
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1337387162854828 5.9893e-08  
a 2.442146401736655 1.3111e-08 au
q 2.115536876987183 1.4088e-07 au
i 4.723480122233862 5.8311e-06 deg
node 221.8846741725345 4.2513e-05 deg
peri 341.4927313563298 4.4728e-05 deg
M 138.4228884649971 1.6093e-05 deg
tp 2458464.504212243499
(2018-Dec-12.00421224)
5.9674e-05 TDB
period 1393.97816164726
3.82
1.1226e-05
3.074e-08
d
yr
n .2582536871127085 2.0798e-09 deg/d
Q 2.768755926486126 1.4865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      10453 days (28.62 yr)  
   first obs. used      1992-04-04  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50661  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:14:08  

Additional Information
 Earth MOID = 1.11235 au 
 Jupiter MOID = 2.19691 au 
 T_jup = 3.484 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456791.5 (2014-May-14.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332791634174168 6.0072e-08  
q 2.118096055836094 1.4133e-07 au
tp 2457069.024307526690
(2015-Feb-15.52430753)
5.3993e-05 TDB
node 221.9636561455785 4.2492e-05 deg
peri 341.3219194184015 4.4711e-05 deg
i 4.723373237640659 5.8316e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      10453 days (28.62 yr)  
   first obs. used      1992-04-04  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50661  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:14:08  

Additional Information
 Jupiter MOID = 2.19691 au 
 T_jup = 3.484 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.608607871521043E-15 -8.469436231147638E-15 1.075674232218955E-12 2.158349019761788E-15 2.222546616495197E-13 2.789027918829851E-16
q -8.469436231147638E-15 1.997464874051405E-14 -2.350580561065926E-12 -4.921755470153622E-15 -4.82874082446803E-13 -6.738989589607826E-16
tp 1.075674232218955E-12 -2.350580561065926E-12 2.915192284900415E-9 -3.593744995944138E-12 7.562603262682142E-10 8.432140565179237E-13
node 2.158349019761788E-15 -4.921755470153622E-15 -3.593744995944138E-12 1.805537780705047E-9 -1.80001195558283E-9 -6.251685411098691E-11
peri 2.222546616495197E-13 -4.82874082446803E-13 7.562603262682142E-10 -1.80001195558283E-9 1.999080475654118E-9 6.252641494890682E-11
i 2.789027918829851E-16 -6.738989589607826E-16 8.432140565179237E-13 -6.251685411098691E-11 6.252641494890682E-11 3.400750972908682E-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 15.4   n/a MPO432396  
diameter diameter 2.717 km 0.543 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.151   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85209 (1992 GM3)          Discovered 1992-Apr-04 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1919-Jan-05 08:44 00:01 Iris 0.0384634119465234 0.038446616050156 0.0384802081090751 7.29381816704793 7.29381814655659 2421963.864093627 1.23508020354638 852.54252920947 45.5506170347864 10.8209303342552 24618.7271719141 T 21 CATAB v2.0f-lin.ifort 2020-Dec-17 22:14:10 2020-Dec-17 22:14

Alternate Designations
 1992 GM3 = 2001 SX260 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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