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21153 (1993 MF1)
Classification: Main-belt Asteroid          SPK-ID: 2021153
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626042748677365 1.9183e-08  
a 2.659737838527151 1.1942e-08 au
q 2.227253095955163 5.4677e-08 au
i 12.79760941583733 4.2607e-07 deg
node 298.5793246062906 1.839e-06 deg
peri 113.996926588876 6.2677e-06 deg
M 298.2932859470849 8.7639e-06 deg
tp 2459472.073002698949
(2021-Sep-14.57300270)
3.9453e-05 TDB
period 1584.370233809314
4.34
1.0671e-05
2.922e-08
d
yr
n .2272196184438843 1.5303e-09 deg/d
Q 3.09222258109914 1.3884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1960  
   data-arc span      11122 days (30.45 yr)  
   first obs. used      1990-07-24  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45033  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:54:35  

Additional Information
 Earth MOID = 1.27342 au 
 Jupiter MOID = 2.30813 au 
 T_jup = 3.332 
[ 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 13.54   n/a E2021B10  
diameter diameter 6.047 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.00922 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.192   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21153 (1993 MF1)          Discovered 1993-Jun-18 by McNaught, R. H. at Siding Spring
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1993 MF1 = 1986 RP3 = 1991 WP = 1999 XK231 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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