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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1537095346594893 3.6675e-08  
a 2.275989126162717 9.9679e-09 au
q 1.926147896690188 8.2496e-08 au
i 7.118941483208323 4.3678e-06 deg
node 89.96172241068821 3.2333e-05 deg
peri 161.7484858327564 3.5302e-05 deg
M 190.7255754445441 1.5673e-05 deg
tp 2459790.215504861802
(2022-Jul-29.71550486)
5.648e-05 TDB
period 1254.162182549307
3.43
8.239e-06
2.256e-08
d
yr
n .2870442156597611 1.8857e-09 deg/d
Q 2.625830355635245 1.15e-08 au
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      8297 days (22.72 yr)  
   first obs. used      1998-04-23  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:13  

Additional Information
 Earth MOID = .911351 au 
 Jupiter MOID = 2.41456 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1965-Nov-25 21:32 00:03 Psych 0.0433356019580978 0.0433297489421458 0.0433414549893199 3.56693497170888 3.56693489343567 2439090.397085716 3.00330229344824 294.476065793529 40.8925082087133 -8.11971956370697 31209.95677606 T 21 CATAB v2.0f-lin.ifort 2021-Apr-13 15:34:15 2021-Apr-13 15:34

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