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379788 (2011 HP69)
Classification: Main-belt Asteroid          SPK-ID: 2379788
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04187600831348724 4.9495e-08  
a 2.789034105205872 3.8784e-08 au
q 2.672240489829671 1.4963e-07 au
i 5.276675132186566 6.6138e-06 deg
node 126.6337379741745 6.1466e-05 deg
peri 321.5205789309146 0.00010467 deg
M 101.6733051868976 8.429e-05 deg
tp 2458520.010827719429
(2019-Feb-05.51082772)
0.00039727 TDB
period 1701.293192967789
4.66
3.5487e-05
9.716e-08
d
yr
n .2116037385490297 4.4138e-09 deg/d
Q 2.905827720582073 4.0408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      5167 days (14.15 yr)  
   first obs. used      2006-02-27  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58103  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:30:52  

Additional Information
 Earth MOID = 1.6912 au 
 Jupiter MOID = 2.17287 au 
 T_jup = 3.322 
[ 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 16.4   n/a MPO471895  

379788 (2011 HP69)          Discovered 2009-Dec-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

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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
1956-Jul-16 21:59 00:09 Hygie 0.0485169261026427 0.0484922082687081 0.0485422131949092 3.3412822726639 3.34128203432442 2435671.415812430 8.70951848316939 8386.32524413826 100.277428597663 -81.4856860395639 71398.5082127088 T 20 CATAB v2.0f-lin.ifort 2020-May-22 00:30:54 2020-May-22 00:31
1963-Apr-21 13:27 00:20 David 0.0130189058202915 0.0129280291342656 0.0131106622386175 3.84478932833857 3.84478902652691 2438141.060386460 19.8143908658633 7009.22557770369 72.0138350007445 -49.5325978862161 20554.2823618455 T 20 CATAB v2.0f-lin.ifort 2020-May-22 00:30:54 2020-May-22 00:31
2060-Dec-25 22:38 00:04 Psych 0.0405840951134627 0.040553855018274 0.0406148975769384 2.41988151904176 2.41988139584388 2473819.442847999 4.1311746352255 7689.80474839127 117.375407330529 78.6167119439614 50583.7456147205 T 20 CATAB v2.0f-lin.ifort 2020-May-22 00:30:54 2020-May-22 00:31

Alternate Designations
 2011 HP69 = 2009 YP2 = 2010 FA77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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