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JPL Small-Body Database Browser
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379776 (2011 HD45)
Classification: Main-belt Asteroid          SPK-ID: 2379776
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .151524454367369 8.3988e-08  
a 3.095048458357748 7.4612e-08 au
q 2.626072929464524 2.2812e-07 au
i 21.75432600192786 1.7194e-05 deg
node 53.38723032934995 2.3685e-05 deg
peri 255.8259235311444 6.9828e-05 deg
M 169.036617040319 6.7406e-05 deg
tp 2458066.648333397990
(2017-Nov-09.14833340)
0.00037104 TDB
period 1988.838902854613
5.45
7.1917e-05
1.969e-07
d
yr
n .1810101358552903 6.5454e-09 deg/d
Q 3.564023987250973 8.5917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      6856 days (18.77 yr)  
   first obs. used      2000-03-25  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69416  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:16:43  

Additional Information
 Earth MOID = 1.70812 au 
 Jupiter MOID = 1.8386 au 
 T_jup = 3.097 
[ 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 15.9   n/a MPO460489  

379776 (2011 HD45)          Discovered 2007-Oct-12 by CSS at Catalina
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
1964-Dec-08 10:33 00:05 Jupiter 1.86502009226337 1.8650179837852 1.86502220074186 6.20132292599414 6.12764887053377 2438737.939505405 4.50135007610829 891.78022880525 102.210230330383 -89.4806435368217 1073364.31277773 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 14:16:44 2019-Jul-14 14:16
2024-Dec-31 04:06 00:01 Jupiter 1.8780814575815 1.87807990546677 1.87808300969761 5.65738410849089 5.57709482325844 2460675.671008725 1.09597330480465 510.708808299168 70.5665320491189 -88.0612677082405 1036776.67527418 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 14:16:44 2019-Jul-14 14:16
2095-Apr-08 06:02 00:07 Jupiter 1.90251356365899 1.90250964904097 1.90251747827679 6.30722882006272 6.23624171343335 2486340.751086536 7.25664253447076 892.082207571639 192.109833628128 -89.8091861877867 799531.517177294 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 14:16:44 2019-Jul-14 14:16
2155-May-02 14:33 00:13 Jupiter 1.87184806300372 1.87184478111946 1.87185134629887 5.77409345484334 5.69518596593421 2508279.106462135 12.8585913663195 2906.01524439751 69.3279631855645 -86.90193370252 1042978.63950362 T 13 CATAB v2.0e-lin.ifort 2019-Jul-14 14:16:44 2019-Jul-14 14:16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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