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100890 (1998 HS122)
Classification: Main-belt Asteroid          SPK-ID: 2100890
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539065886348278 4.7927e-08  
a 2.27557073282465 1.3715e-08 au
q 1.925345404138352 1.1307e-07 au
i 7.119321717710752 4.7555e-06 deg
node 89.95996011266287 3.9506e-05 deg
peri 161.7271553009235 4.2875e-05 deg
M 133.3326773681389 1.9808e-05 deg
tp 2458536.125850932032
(2019-Feb-21.62585093)
6.6618e-05 TDB
period 1253.81637093276
3.43
1.1335e-05
3.103e-08
d
yr
n .2871233845289344 2.5958e-09 deg/d
Q 2.625796061510947 1.5826e-08 au
  Orbit Determination Parameters
   # obs. used (total)      455  
   data-arc span      7247 days (19.84 yr)  
   first obs. used      1998-04-23  
   last obs. used      2018-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64854  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-05 23:46:44  

Additional Information
 Earth MOID = .91217 au 
 Jupiter MOID = 2.41564 au 
 T_jup = 3.583 
[ 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 16.2   n/a MPO280443  

100890 (1998 HS122)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 HS122 = 2001 DZ100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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