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8567 (1996 HW1)
Classification: Amor [NEO]          SPK-ID: 2008567
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 455 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4491961939244528 8.387e-09  
a 2.045445253571655 7.1274e-09 au
q 1.12663903078643 1.6021e-08 au
i 8.44929408971829 3.0354e-06 deg
node 177.1091859993015 9.0691e-06 deg
peri 177.2414255916041 1.1629e-05 deg
M .5463124415530878 7.9705e-06 deg
tp 2458998.878493076578
(2020-May-29.37849308)
2.3649e-05 TDB
period 1068.514000472523
2.93
5.5849e-06
1.529e-08
d
yr
n .3369165025828386 1.761e-09 deg/d
Q 2.964251476356879 1.0329e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3488  
   # delay obs. used      6  
   # Doppler obs. used      6  
   data-arc span      23894 days (65.42 yr)  
   first obs. used      1955-05-23  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-24 07:48:40  

Additional Information
 Earth MOID = .12239 au 
 Jupiter MOID = 2.48564 au 
 T_jup = 3.652 
[ 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 15.3   n/a PDS3 (MPC 31512)  
diameter diameter 2.928 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 8.7573 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm]
[Higgins, D.J.; Pravec, P.; Kusnirak, P.; Masi, G.; et al. (2006) Minor Planet Bull. 33, 8-10.]
[Benishek, V.; Protitch-Benishek, V. (2009) Minor Planet Bull. 36, 35-37.]
[Hamanowa, H.; Hamanowa, H. (2011) http://www2.ocn.ne.jp/~hamaten/astlcdata.htm]
[Magri, C.; Howell, E.S.; Nolan, M.; Taylor, P.A.; et al. (2011) Icarus 214, 210-227.]
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bull. 39, 111-130.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.J.; Pravec, P.; Koehn, B.W. (2019) Minor Plantet Bull. 46, 238-265.]
geometric albedo albedo 0.156   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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