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2135 Aristaeus (1977 HA)
Classification: Apollo [NEO, PHA]          SPK-ID: 2002135
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5032022162131125 1.2792e-06  
a 1.59955344467065 7.7708e-08 au
q .7946546063610606 2.0257e-06 au
i 23.07103321019078 5.1473e-05 deg
node 191.1276518578793 0.00034138 deg
peri 290.995165806433 0.00015616 deg
M 335.7536932616936 0.00072135 deg
tp 2459446.266792868225
(2021-Aug-19.76679287)
0.0014842 TDB
period 738.9185341062953
2.02
5.3846e-05
1.474e-07
d
yr
n .4871984980528491 3.5503e-08 deg/d
Q 2.404452282980239 1.1681e-07 au
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      15749 days (43.12 yr)  
   first obs. used      1977-04-17  
   last obs. used      2020-05-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .54865  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:23:04  

Additional Information
 Earth MOID = .00961806 au 
 Jupiter MOID = 2.95347 au 
 T_jup = 4.135 
[ 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 18.02   n/a E2021B10  

2135 Aristaeus           Discovered 1977 Apr. 17 by E. F. Helin and S. J. Bus at Palomar.
This Apollo object is named for the son of Apollo and the nymph Cyrene.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5014Last Updated: 2006-03-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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