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22637 (1998 MR22)
Classification: Main-belt Asteroid          SPK-ID: 2022637
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603208553899248 2.4573e-08  
a 2.697887164399137 1.367e-08 au
q 2.265359586457168 7.0482e-08 au
i 11.95510494312725 3.7106e-07 deg
node 276.1668278236094 5.3486e-06 deg
peri 20.78570996126555 1.0399e-05 deg
M 2.662048858133027 4.8448e-06 deg
tp 2459188.531282370805
(2020-Dec-05.03128237)
2.1773e-05 TDB
period 1618.579739190887
4.43
1.2302e-05
3.368e-08
d
yr
n .2224172163306336 1.6904e-09 deg/d
Q 3.130414742341105 1.5861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1921  
   data-arc span      16206 days (44.37 yr)  
   first obs. used      1976-05-27  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43755  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:32  

Additional Information
 Earth MOID = 1.2513 au 
 Jupiter MOID = 2.07026 au 
 T_jup = 3.319 
[ 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 13.29   n/a E2021B10  
diameter diameter 5.354 km 0.449 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.136 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.323   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22637 (1998 MR22)          Discovered 1998-Jun-24 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 MR22 = 1999 TB251 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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