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85969 (1999 GP2)
Classification: Main-belt Asteroid          SPK-ID: 2085969
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1487975475848305 4.3764e-08  
a 3.108627632582811 2.1221e-08 au
q 2.646071464500051 1.3621e-07 au
i 5.812284909592949 4.9628e-06 deg
node 147.6089728987844 3.6625e-05 deg
peri 183.1460852855857 3.8627e-05 deg
M 188.3798943240084 1.2725e-05 deg
tp 2459954.870805919844
(2023-Jan-10.37080592)
7.4412e-05 TDB
period 2001.941956496576
5.48
2.0499e-05
5.612e-08
d
yr
n .1798253934544659 1.8414e-09 deg/d
Q 3.57118380066557 2.4379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      751  
   data-arc span      8119 days (22.23 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:09  

Additional Information
 Earth MOID = 1.63529 au 
 Jupiter MOID = 1.79048 au 
 T_jup = 3.195 
[ show covariance matrix ]

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 14.9   n/a MPO244837  
diameter diameter 5.510 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85969 (1999 GP2)          Discovered 1999-Apr-08 by Bickel, W. at Bergisch Gladbach
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
1932-Aug-04 11:01 00:03 Jupiter 1.83572833242991 1.83572747258326 1.83572919228011 2.36439238234461 2.16044724808361 2426923.959237356 2.60062600979065 162.48527678534 13.643852560236 -82.2587821387081 2288309.8279273 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
1942-Aug-21 17:31 00:02 Jupiter 1.81641849460924 1.81641796339242 1.81641902582586 2.34305226731691 2.1347750865265 2430593.229614655 2.36349121031673 55.0889510978742 8.89760163364643 84.3273994687004 2120476.19647719 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
2003-Nov-15 04:18 < 00:01 Jupiter 1.84589078345229 1.84589030761376 1.84589125929082 2.38845359653619 2.18791500901674 2452958.679496370 0.438031775825318 51.2530754225984 13.2087515028916 -77.5846249157576 2373385.45394498 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
2013-Dec-04 19:21 < 00:01 Jupiter 1.81862632518402 1.8186259529967 1.81862669737134 2.35444257465038 2.14753412109367 2456631.306548908 0.232117061022929 55.5637472001146 9.66110103289798 85.9925757554619 3233858.72518578 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
2075-Feb-25 22:22 00:02 Jupiter 1.85532645925795 1.85532589678058 1.85532702173637 2.40630977509349 2.20845095056363 2478994.431616362 1.82224947774262 114.994192913094 13.7705832000177 -83.3149355619063 2404563.89062438 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
2085-Mar-19 03:21 00:02 Jupiter 1.82068935849933 1.82068878912497 1.8206899278736 2.36911398608685 2.163852935742 2482668.639309306 2.23796221002979 60.1446339418041 11.2498800172732 85.4108570892015 2332292.16373781 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
2146-Jun-09 12:13 00:04 Jupiter 1.86236731497115 1.86236629092826 1.86236833902325 2.41452208320893 2.21817440914427 2505030.009368584 4.00822002283807 243.041287509778 13.5262794612296 -82.6682325609311 2407423.58113426 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59
2156-Jul-03 00:13 00:05 Jupiter 1.82001574047618 1.820014854891 1.82001662606178 2.37940618688292 2.17503744307256 2508706.509331146 4.49578897139032 88.1207420465429 12.9059934594443 82.8073836559164 2135903.45750532 T 22 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:11 2020-Nov-12 20:59

Alternate Designations
 1999 GP2 = 2001 SA66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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