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21152 (1993 MB1)
Classification: Main-belt Asteroid          SPK-ID: 2021152
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434910934938996 1.7528e-08  
a 2.568859302657261 1.0366e-08 au
q 2.200250872286994 4.6489e-08 au
i 13.5786930401033 5.7058e-07 deg
node 131.5103721023584 5.5754e-06 deg
peri 120.945767580599 9.4205e-06 deg
M 252.574232651753 8.9912e-06 deg
tp 2459649.260753271650
(2022-Mar-10.76075327)
3.9073e-05 TDB
period 1503.865182122251
4.12
9.1029e-06
2.492e-08
d
yr
n .2393831603255611 1.449e-09 deg/d
Q 2.937467733027527 1.1854e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2350  
   data-arc span      24097 days (65.97 yr)  
   first obs. used      1955-03-25  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43175  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:40:35  

Additional Information
 Earth MOID = 1.21652 au 
 Jupiter MOID = 2.24968 au 
 T_jup = 3.377 
[ 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 13.20   n/a E2021B10  
diameter diameter 6.258 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.411   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21152 (1993 MB1)          Discovered 1993-Jun-17 by Holt, H. E. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 MB1 = 2000 BZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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