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3915 Fukushima (1988 PA1)
Classification: Main-belt Asteroid          SPK-ID: 2003915
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04044376078126793 1.2394e-08  
a 2.439058557335597 7.7128e-09 au
q 2.340413856511212 2.954e-08 au
i 14.42566661829554 1.1747e-06 deg
node 173.457873894764 2.1414e-06 deg
peri 144.6673635993864 2.5091e-05 deg
M 187.9717982113739 2.4523e-05 deg
tp 2459865.358026840912
(2022-Oct-12.85802684)
9.5491e-05 TDB
period 1391.335183267336
3.81
6.5996e-06
1.807e-08
d
yr
n .2587442654577278 1.2273e-09 deg/d
Q 2.537703258159982 8.0248e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3050  
   data-arc span      34679 days (94.95 yr)  
   first obs. used      1926-04-13  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4094  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:18:03  

Additional Information
 Earth MOID = 1.33842 au 
 Jupiter MOID = 2.58216 au 
 T_jup = 3.458 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457289.5 (2015-Sep-24.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0414629444501193 1.2415e-08  
q 2.337623483327977 2.961e-08 au
tp 2457081.169037585729
(2015-Feb-27.66903759)
9.0667e-05 TDB
node 173.5053654365317 2.1394e-06 deg
peri 144.1639794972292 2.4458e-05 deg
i 14.43282906253829 1.1751e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3050  
   data-arc span      34679 days (94.95 yr)  
   first obs. used      1926-04-13  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4094  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:18:03  

Additional Information
 Jupiter MOID = 2.58216 au 
 T_jup = 3.458 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.541267942389948E-16 -3.565727403945038E-16 1.651549039064058E-13 -1.462612564988669E-16 3.442333492823686E-14 -7.963622562768635E-15
q -3.565727403945038E-16 8.767497086051773E-16 -3.282671619268526E-13 3.907454118977544E-16 -6.368509165722572E-14 1.935158097616792E-14
tp 1.651549039064058E-13 -3.282671619268526E-13 8.220490175576956E-9 -5.965564338729045E-12 2.208484858808953E-9 -3.563094839027038E-11
node -1.462612564988669E-16 3.907454118977544E-16 -5.965564338729045E-12 4.576843012629092E-12 -5.745722901766457E-12 -1.123814477785103E-13
peri 3.442333492823686E-14 -6.368509165722572E-14 2.208484858808953E-9 -5.745722901766457E-12 5.982174733017764E-10 -9.003883059681497E-12
i -7.963622562768635E-15 1.935158097616792E-14 -3.563094839027038E-11 -1.123814477785103E-13 -9.003883059681497E-12 1.380804244935458E-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 12.33   n/a E2021B10  
diameter diameter 21.993 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.418 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Shipley, H.; Dillard, A.; Kendall, J.; Reichert, M.; et al. (2008) Minor Planet Bull. 35, 99-101.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
geometric albedo albedo 0.051   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3915 Fukushima (1988 PA1)          Discovered 1988-Aug-15 by Yanai, M. and Watanabe, K. at Kitami
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1988 PA1 = 1926 GQ = 1935 UL = 1935 UX = 1950 QT = 1975 EX5 = 1977 TV7 = 1977 TW3 = 1979 FH1 = 1983 EM 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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