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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883315025763125 5.6625e-07  
a .9642087744989248 1.0125e-07 au
q .7826178872002775 5.7269e-07 au
i 19.86942306771109 6.9873e-05 deg
node 57.3211769878677 1.0306e-05 deg
peri 315.2256725331258 4.9707e-05 deg
M 353.4704090239583 0.00029664 deg
tp 2459006.772468981614
(2020-Jun-06.27246898)
0.0002859 TDB
period 345.8239331784268
0.95
5.4471e-05
1.491e-07
d
yr
n 1.040992150807154 1.6397e-07 deg/d
Q 1.145799661797572 1.2032e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .32033  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-10 07:06:36  

Additional Information
 Earth MOID = .0551956 au 
 Jupiter MOID = 4.18316 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. 2019-August); 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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