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8567 (1996 HW1)
Classification: Amor [NEO]          SPK-ID: 2008567
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 363 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4492829244027742 6.118e-09  
a 2.045792508570666 7.8768e-09 au
q 1.12665286759875 1.1334e-08 au
i 8.450683071501686 2.2448e-06 deg
node 177.1323534921309 7.1396e-06 deg
peri 177.2644954657532 9.7892e-06 deg
M 248.739302144378 5.6524e-06 deg
tp 2457930.816358142900
1.8643e-05 JED
period 1068.786114264296
n .336830723374253 1.9453e-09 deg/d
Q 2.964932149542582 1.1416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3050  
   # delay obs. used      6  
   # Doppler obs. used      6  
   data-arc span      22263 days (60.95 yr)  
   first obs. used      1955-05-23  
   last obs. used      2016-05-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4297  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-May-05 05:50:09  

Additional Information
 Earth MOID = .121376 au 
 Jupiter MOID = 2.4759 au 
 T_jup = 3.652 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3 mag n/a PDS3 (MPC 31512)  
rotation period rot_per 8.7573 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005)]
[Higgins, D.J.; Pravec, P.; Kusnirak, P.; Masi, G.; et al. (2006) Minor Planet Bul. 33, 8-10.]
[Benishek, V.; Protitch-Benishek, V. (2009) Minor Planet Bul. 36, 35-37.]
[Magri, C.; Howell, E.S.; Nolan, M.; Taylor, P.A.; et al. (2011) Icarus 214, 210-227.]
[Hamanowa, H.; Hamanowa, H. (2011)]
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bul. 39, 111-130.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2015) Astron. Astrophys. 586, A108.]

8567 (1996 HW1)          Discovered 1996-Apr-23 by Spacewatch at Kitt Peak
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-06 20:39 UT
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