Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
85969 (1999 GP2)
Classification: Main-belt Asteroid          SPK-ID: 2085969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491786702256731 4.1002e-08  
a 3.107178861443546 1.9906e-08 au
q 2.643654050740076 1.2971e-07 au
i 5.813082550400742 4.5979e-06 deg
node 147.6136892877405 3.62e-05 deg
peri 183.2749824938164 3.8139e-05 deg
M 259.4758383852563 1.2937e-05 deg
tp 2459955.119081412389
(2023-Jan-10.61908141)
7.4157e-05 TDB
period 2000.542616601783
5.48
1.9225e-05
5.264e-08
d
yr
n .1799511777517207 1.7293e-09 deg/d
Q 3.570703672147015 2.2876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      812  
   data-arc span      8483 days (23.23 yr)  
   first obs. used      1998-03-20  
   last obs. used      2021-06-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53336  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:27  

Additional Information
 Earth MOID = 1.63215 au 
 Jupiter MOID = 1.79123 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 14.93   n/a E2021B10  
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

[ hide close-approach data ]
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 11:02 00:02 Jupiter 1.83572842913432 1.83572764317721 1.83572921509457 2.36439314994068 2.1604481005709 2426923.959445937 2.47985322502157 155.148656262677 12.4412308115931 -82.3931614316316 2435484.17969661 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
1942-Aug-21 17:31 00:02 Jupiter 1.81641850542773 1.81641797573066 1.81641903512459 2.34305222816264 2.1347750460599 2430593.229783062 2.24759989779438 51.4418482924272 8.61452768702256 83.4362028251771 2123512.59826361 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
2003-Nov-15 04:18 < 00:01 Jupiter 1.84589078359387 1.84589033958676 1.84589122760098 2.38845411754714 2.18791557895688 2452958.679488686 0.432285547025507 50.877133297301 11.946663634322 -77.7731849528723 2540016.14500638 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
2013-Dec-04 19:21 < 00:01 Jupiter 1.81862636748465 1.81862602849868 1.81862670647061 2.35444278613611 2.14753435919796 2456631.306547829 0.230950672333469 52.2705999912538 9.23013669019 84.9712594325994 3623235.66946983 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
2075-Feb-25 22:21 00:02 Jupiter 1.85532636841377 1.85532580607512 1.85532693075338 2.40631006603017 2.20845125858586 2478994.431391930 1.70623334877148 108.714367288388 12.6767206582487 -82.8808553647092 2508399.26767024 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
2085-Mar-19 03:20 00:02 Jupiter 1.82068950197132 1.82068900684697 1.82068999709567 2.36911471877297 2.16385375605964 2482668.639046005 2.10840852326386 57.5134359358645 10.3893207824296 84.6020755993598 2746011.40574973 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
2146-Jun-09 12:12 00:04 Jupiter 1.86236707049404 1.86236606563129 1.86236807536506 2.41452202360961 2.21817431848628 2505030.008645950 3.77504506706248 229.287183379361 12.5567070608385 -82.4923657353924 2511394.80463154 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27
2156-Jul-03 00:12 00:04 Jupiter 1.82001606963906 1.82001528071839 1.82001685856014 2.37940766797827 2.17503910321307 2508706.508446321 4.24492123417324 84.7723535323666 11.6157725586378 82.6881302963077 2443586.06413948 T 25 CATAB v2.0g-lin.ifort 2021-Jul-08 23:27:30 2021-Jul-08 23:27

Alternate Designations
 1999 GP2 = 2001 SA66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-30 05:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin