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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623860622831335 1.9178e-08  
a 2.658584116640213 1.1739e-08 au
q 2.226867110690526 5.4551e-08 au
i 12.79706696110395 4.2601e-07 deg
node 298.5757236399545 1.8395e-06 deg
peri 114.1186915079437 6.2906e-06 deg
M 342.7303205658104 8.9274e-06 deg
tp 2459472.454902554730
(2021-Sep-14.95490255)
3.9508e-05 TDB
period 1583.339460579047
4.33
1.0487e-05
2.871e-08
d
yr
n .2273675411767629 1.5059e-09 deg/d
Q 3.0903011225899 1.3645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1972  
   data-arc span      11301 days (30.94 yr)  
   first obs. used      1990-07-24  
   last obs. used      2021-07-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44905  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:03:44  

Additional Information
 Earth MOID = 1.27327 au 
 Jupiter MOID = 2.30949 au 
 T_jup = 3.333 
[ 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 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

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