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16853 Masafumi (1997 YV2)
Classification: Main-belt Asteroid          SPK-ID: 2016853
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209833170886585 4.0966e-08  
a 3.09921560005034 1.438e-08 au
q 2.724262216383333 1.2965e-07 au
i 2.191906539289842 3.7189e-06 deg
node 105.3310353948618 0.00011329 deg
peri 47.89989328391829 0.00011443 deg
M 43.50201801777046 1.4906e-05 deg
tp 2458959.685288781412
(2020-Apr-20.18528878)
8.2451e-05 TDB
period 1992.856883174427
5.46
1.387e-05
3.797e-08
d
yr
n .1806451848296076 1.2573e-09 deg/d
Q 3.474168983717347 1.612e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2058  
   data-arc span      8800 days (24.09 yr)  
   first obs. used      1997-02-01  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51223  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:44:17  

Additional Information
 Earth MOID = 1.7351 au 
 Jupiter MOID = 1.51681 au 
 T_jup = 3.210 
[ 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 13.27   n/a E2021B10  
diameter diameter 12.025 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16853 Masafumi           Discovered 1997 Dec. 21 by N. Sato at Chichibu.
Masafumi Kimura (1959-2009) was a Japanese aerospace engineer who calculated the spacecraft orbit and contributed much to the success of `KAGUYA' as leader of design of the high-gain antenna that allows communication between the moon and the earth.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20101128/MPCPages.arcLast Updated: 2010-12-06

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Alternate Designations
 1997 YV2 = 1999 JF27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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