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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
85989 (1999 JD6)
Classification: Aten [NEO, PHA]          SPK-ID: 2085989
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 348 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6329129454364443 2.4327e-08  
a .8831210741234224 1.1385e-09 au
q .3241823139229707 2.1475e-08 au
i 17.05839810832881 3.3618e-06 deg
node 130.1836509843489 2.079e-06 deg
peri 309.2118639951083 1.2026e-06 deg
M 123.0729067553707 3.1076e-06 deg
tp 2458496.869222406245
(2019-Jan-13.36922241)
2.4288e-06 TDB
period 303.1299163828656
0.83
5.8621e-07
1.605e-09
d
yr
n 1.187609604145125 2.2967e-09 deg/d
Q 1.442059834323874 1.8592e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2781  
   # delay obs. used      11  
   # Doppler obs. used      4  
   data-arc span      10630 days (29.10 yr)  
   first obs. used      1990-06-22  
   last obs. used      2019-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:09:06  

Additional Information
 Earth MOID = .048097 au 
 Jupiter MOID = 3.86211 au 
 T_jup = 6.502 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456307.5 (2013-Jan-15.0) TDB
Reference: JPL 348 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6328838545285744 2.4477e-08  
q .3240574927082406 2.1712e-08 au
tp 2456375.790844809080
(2013-Mar-24.29084481)
1.7706e-06 TDB
node 130.2475403619742 2.1007e-06 deg
peri 309.1796609349332 1.2055e-06 deg
i 17.05567186010494 3.3521e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2781  
   # delay obs. used      11  
   # Doppler obs. used      4  
   data-arc span      10630 days (29.10 yr)  
   first obs. used      1990-06-22  
   last obs. used      2019-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:09:06  

Additional Information
 Jupiter MOID = 3.86211 au 
 T_jup = 6.502 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.991094694648968E-16 -5.313283086420206E-16 -8.192015284319926E-15 1.430151786702717E-14 6.10236486824391E-15 -3.102882669395511E-14
q -5.313283086420206E-16 4.713921392911919E-16 6.552467434542579E-15 -1.289626424148454E-14 -5.331955196878518E-15 2.784253755408274E-14
tp -8.192015284319926E-15 6.552467434542579E-15 3.135107492099321E-12 -4.400435947997689E-14 -1.696813604186456E-15 2.017836394266821E-13
node 1.430151786702717E-14 -1.289626424148454E-14 -4.400435947997689E-14 4.412769620163938E-12 -2.20886901266491E-12 -6.998205378712276E-12
peri 6.10236486824391E-15 -5.331955196878518E-15 -1.696813604186456E-15 -2.20886901266491E-12 1.453110611755269E-12 3.305685830020734E-12
i -3.102882669395511E-14 2.784253755408274E-14 2.017836394266821E-13 -6.998205378712276E-12 3.305685830020734E-12 1.123653793119054E-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 17.1   n/a MPO263970  
diameter diameter 1.462 km 0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 7.6638 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2000) http://www.asu.cas.cz/~ppravec/neo.htm]
[Szabo, Gy.M.; Csak, B.; Sarneczky, K.; Kiss, L.L. (2001) Astron. Astrophys. 375, 285-292.]
[Polishook, D.; Brosch, N.; Prianik, D. (2005) Abstr. IAU Symp. 229, p. 60-61.]
[Polishook, D.; Brosch, N. (2008) Icarus 194, 111-124.]
[Warner, Brian D. (2014) Minor Planet Bull. 41, 213-224.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
[Vaduvescu, O.; Aznar Macias, A.; Tudor, V.; Predatu, M.; et al. (2017) Earth, Moon, and Planets 120, 41-100.]
[Aznar Macias, A.; Predatu, M.; Vaduvescu, O.; Oey, J. (2018) arXiv:1801.09420. Romanian J. Phys. 62, 904 (2017).]
[Warner, B.D. (2018) Minor Planet Bull. 45, 366-379.]
geometric albedo albedo 0.056   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  
SMASSII spectral type spec_B K   n/a Binzel et al. (2001) Icarus 151, 139-149  

85989 (1999 JD6)          Discovered 1999-May-12 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-27 22:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin