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403775 (2011 HS4)
Classification: Aten [NEO, PHA]          SPK-ID: 2403775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6800085708628175 1.5404e-07  
a .9383296378122212 1.6802e-08 au
q .3002574418053075 1.4685e-07 au
i 5.46338570811031 1.3499e-05 deg
node 117.5031723176431 0.00016416 deg
peri 314.2788256896855 0.00015046 deg
M 309.1958795287368 5.4961e-05 deg
tp 2459247.351987027060
(2021-Feb-01.85198703)
5.0291e-05 TDB
period 331.9950266491059
0.91
8.9174e-06
2.441e-08
d
yr
n 1.084353592984672 2.9126e-08 deg/d
Q 1.576401833819135 2.8228e-08 au
  Orbit Determination Parameters
   # obs. used (total)      96  
   data-arc span      6562 days (17.97 yr)  
   first obs. used      2002-06-01  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .47019  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-28 11:57:21  

Additional Information
 Earth MOID = .00605215 au 
 Jupiter MOID = 3.73641 au 
 T_jup = 6.165 
[ 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 20.86   n/a E2021B25  

403775 (2011 HS4)          Discovered 2011-Apr-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-08-13

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