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3996 Fugaku (1988 XG1)
Classification: Main-belt Asteroid          SPK-ID: 2003996
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1032699824905529 2.7536e-08  
a 2.259347456918739 6.5378e-09 au
q 2.026024684602666 6.3012e-08 au
i 2.284174156812762 3.0361e-06 deg
node 90.74961559398209 8.5618e-05 deg
peri 156.5107879108425 8.7202e-05 deg
M 23.29079572660471 1.7347e-05 deg
tp 2459316.248198649293
(2021-Apr-11.74819865)
5.9702e-05 TDB
period 1240.43200693453
3.40
5.3841e-06
1.474e-08
d
yr
n .2902214696069195 1.2597e-09 deg/d
Q 2.492670229234812 7.2129e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3008  
   data-arc span      30053 days (82.28 yr)  
   first obs. used      1939-03-17  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42101  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:53:21  

Additional Information
 Earth MOID = 1.01268 au 
 Jupiter MOID = 2.51523 au 
 T_jup = 3.613 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457029.5 (2015-Jan-07.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1035125902873924 2.7473e-08  
q 2.025683603378296 6.2913e-08 au
tp 2456835.252522612621
(2014-Jun-26.75252261)
5.8374e-05 TDB
node 90.76945349690014 8.563e-05 deg
peri 156.5102262530052 8.7213e-05 deg
i 2.28414936345611 3.0356e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3008  
   data-arc span      30053 days (82.28 yr)  
   first obs. used      1939-03-17  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42101  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:53:21  

Additional Information
 Jupiter MOID = 2.51523 au 
 T_jup = 3.613 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.547688520849163E-16 -1.720822027331418E-15 -1.641690031783053E-13 -4.4712378820599E-15 -3.915419718930572E-14 -4.376856248611207E-17
q -1.720822027331418E-15 3.958067154504094E-15 3.794742691079601E-13 9.800191658291774E-15 9.155307638919108E-14 1.315925726165817E-16
tp -1.641690031783053E-13 3.794742691079601E-13 3.407569370242453E-9 5.572754745948113E-12 9.771504433880375E-10 1.315808623591995E-13
node -4.4712378820599E-15 9.800191658291774E-15 5.572754745948113E-12 7.332562817323021E-9 -7.324835219792878E-9 -2.897128202994046E-12
peri -3.915419718930572E-14 9.155307638919108E-14 9.771504433880375E-10 -7.324835219792878E-9 7.606071711851207E-9 2.929336499179983E-12
i -4.376856248611207E-17 1.315925726165817E-16 1.315808623591995E-13 -2.897128202994046E-12 2.929336499179983E-12 9.215022360490997E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.11   n/a E2021B10  
diameter diameter 5.231 km 0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.193 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.409   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3996 Fugaku (1988 XG1)          Discovered 1988-Dec-05 by Arai, M. and Mori, H. at Yorii
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 XG1 = 1939 FZ = 1957 TB = 1981 SO5 = 1981 UM16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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