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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623860620956258 1.9169e-08  
a 2.658584116823596 1.173e-08 au
q 2.226867111342635 5.4518e-08 au
i 12.79706696258437 4.2601e-07 deg
node 298.57572363485 1.8395e-06 deg
peri 114.1186915892592 6.286e-06 deg
M 342.7303204092544 8.9157e-06 deg
tp 2459472.454903251148
(2021-Sep-14.95490325)
3.9456e-05 TDB
period 1583.339460742868
4.33
1.0479e-05
2.869e-08
d
yr
n .2273675411532381 1.5047e-09 deg/d
Q 3.090301122304556 1.3635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      11313 days (30.97 yr)  
   first obs. used      1990-07-24  
   last obs. used      2021-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:58:01  

Additional Information
 Earth MOID = 1.27327 au 
 Jupiter MOID = 2.30949 au 
 T_jup = 3.333 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1658048096502913 1.9275e-08  
q 2.216804437563737 5.4881e-08 au
tp 2456304.093677969058
(2013-Jan-11.59367797)
3.3516e-05 TDB
node 298.6554810348298 1.8433e-06 deg
peri 113.7439781889058 6.1455e-06 deg
i 12.78790364082336 4.262e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      11313 days (30.97 yr)  
   first obs. used      1990-07-24  
   last obs. used      2021-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 14:58:01  

Additional Information
 Jupiter MOID = 2.30949 au 
 T_jup = 3.333 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.715187564755794E-16 -1.042418647575138E-15 -2.889147729396525E-13 -5.668216680097436E-16 -4.405297330166889E-14 -4.051200589324923E-16
q -1.042418647575138E-15 3.01188025971121E-15 7.550527993553559E-13 1.188720967086533E-15 1.234966719435823E-13 1.063398388073975E-15
tp -2.889147729396525E-13 7.550527993553559E-13 1.12334211960431E-9 -8.648929758703799E-12 1.92846420659954E-10 1.37805912687234E-12
node -5.668216680097436E-16 1.188720967086533E-15 -8.648929758703799E-12 3.397896292458662E-12 -4.85737768722746E-12 -3.50084222842117E-13
peri -4.405297330166889E-14 1.234966719435823E-13 1.92846420659954E-10 -4.85737768722746E-12 3.776662759050865E-11 5.44433577183667E-13
i -4.051200589324923E-16 1.063398388073975E-15 1.37805912687234E-12 -3.50084222842117E-13 5.44433577183667E-13 1.816479886939811E-13

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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