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(2015 HA1)
Classification: Aten [NEO]          SPK-ID: 3716433
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883721728682254 5.6275e-07  
a .96423069707776 1.0111e-07 au
q .7825964655229787 5.69e-07 au
i 19.86926185547034 6.9425e-05 deg
node 57.31946169260799 1.0255e-05 deg
peri 315.2296671574802 4.9617e-05 deg
M 201.6588252655646 0.00032697 deg
tp 2459352.611209282996
(2021-May-18.11120928)
0.00033711 TDB
period 345.8357274014181
0.95
5.4397e-05
1.489e-07
d
yr
n 1.04095664928841 1.6373e-07 deg/d
Q 1.145864928632541 1.2016e-07 au
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      372 days (1.02 yr)  
   first obs. used      2015-04-16  
   last obs. used      2016-04-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .30835  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 13:31:52  

Additional Information
 Earth MOID = .0540132 au 
 Jupiter MOID = 4.18204 au 
 T_jup = 6.192 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.2   n/a E2015L36  
rotation period rot_per 47.2 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]

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