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22590 (1998 HJ102)
Classification: Main-belt Asteroid          SPK-ID: 2022590
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1595013053307091 3.0599e-08  
a 2.278596598083772 8.0422e-09 au
q 1.915157466367297 6.8654e-08 au
i 6.478809841257327 3.68e-06 deg
node 44.58012056419351 3.1955e-05 deg
peri 243.308001439551 3.4336e-05 deg
M 164.5177780949754 1.2551e-05 deg
tp 2458626.370412562541
(2019-May-22.87041256)
4.3902e-05 TDB
period 1256.318033654491
3.44
6.6511e-06
1.821e-08
d
yr
n .2865516456472408 1.517e-09 deg/d
Q 2.642035729800247 9.3249e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1383  
   data-arc span      10279 days (28.14 yr)  
   first obs. used      1992-11-26  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:07:59  

Additional Information
 Earth MOID = .907568 au 
 Jupiter MOID = 2.5225 au 
 T_jup = 3.582 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO435911  
rotation period rot_per 2.94 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) Ap. J. Supp. Ser. 241, A6.]

22590 (1998 HJ102)          Discovered 1998-Apr-25 by Elst, E. W. at La Silla
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HJ102 = 1999 VN167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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