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3995 Sakaino (1988 XM)
Classification: Main-belt Asteroid          SPK-ID: 2003995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09514274702685778 2.2944e-08  
a 2.634160327886427 1.0807e-08 au
q 2.383539078182144 6.0636e-08 au
i 9.299539910877225 2.4044e-07 deg
node 99.8241534333393 8.1141e-07 deg
peri 276.5988394137095 1.1265e-05 deg
M 221.020154065568 1.4064e-05 deg
tp 2459803.352490057438
6.2739e-05 TDB
period 1561.570995862716
n .2305370687300144 1.4187e-09 deg/d
Q 2.884781577590709 1.1835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2597  
   data-arc span      22735 days (62.25 yr)  
   first obs. used      1958-12-04  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40939  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:48:48  

Additional Information
 Earth MOID = 1.40575 au 
 Jupiter MOID = 2.56473 au 
 T_jup = 3.373 
[ 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 12.21   n/a E2021B10  
diameter diameter 9.487 km 0.480 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 4.5529 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Trent, L. (2018) Minor Planet Bull. 45, 328-329.]
[Marchini, A.; Papini, R.; Banfi, M.; Salvaggio, F. (2019) Minor Planet Bull. 46, 213-214.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.311   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

3995 Sakaino           Discovered 1988 Dec. 5 by T. Kojima at Chiyoda.
Named in honor of Teruo Sakaino (b. 1917), a glass and ceramics chemist, professor emeritus of the Tokyo Institute of Technology and of the Wuhan (China) University of Engineering, known for his research on amorphous materials. In particular, he developed quantitative methods for estimating the quality of optical glass. He is also an amateur astronomer and a former teacher of the discoverer at the T.I.T.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19961026/MPCPages.arcLast Updated: 2003-09-26

[ show close-approach data ]
Alternate Designations
 1988 XM = 1958 XE = 1978 JB1 = 1981 CF = 1984 YV4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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