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3983 Sakiko (1984 SX)
Classification: Main-belt Asteroid          SPK-ID: 2003983
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1129673766855322 3.4101e-08  
a 2.449788724957969 8.1208e-09 au
q 2.173042519265672 8.5467e-08 au
i 2.607577057734498 3.4356e-06 deg
node 329.1484017450743 7.5604e-05 deg
peri 225.7529832613505 7.705e-05 deg
M 277.8730255710658 1.5872e-05 deg
tp 2459320.002820952092
(2021-Apr-15.50282095)
6.2238e-05 TDB
period 1400.52663990785
3.83
6.9639e-06
1.907e-08
d
yr
n .2570461637371546 1.2781e-09 deg/d
Q 2.726534930650265 9.0382e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2703  
   data-arc span      23548 days (64.47 yr)  
   first obs. used      1956-05-08  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:25  

Additional Information
 Earth MOID = 1.17295 au 
 Jupiter MOID = 2.23728 au 
 T_jup = 3.486 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456821.5 (2014-Jun-13.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128670546936847 3.4131e-08  
q 2.173309198716129 8.5524e-08 au
tp 2456520.581593252145
(2013-Aug-16.08159325)
5.9393e-05 TDB
node 329.2209304605781 7.5533e-05 deg
peri 226.0086402203543 7.6982e-05 deg
i 2.60908208957472 3.4369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2703  
   data-arc span      23548 days (64.47 yr)  
   first obs. used      1956-05-08  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:25  

Additional Information
 Jupiter MOID = 2.23728 au 
 T_jup = 3.486 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.16493481311178E-15 -2.909180123605702E-15 -2.863179166932127E-13 2.36469452574739E-15 -5.703936691520546E-14 4.448472042808045E-16
q -2.909180123605702E-15 7.314273098927867E-15 7.428043747356206E-13 -5.609886917225278E-15 1.503871021664343E-13 -1.037207434843647E-15
tp -2.863179166932127E-13 7.428043747356206E-13 3.527527661142343E-9 -1.664643695339163E-11 8.964192069559807E-10 7.585911540849183E-14
node 2.36469452574739E-15 -5.609886917225278E-15 -1.664643695339163E-11 5.705275613842017E-9 -5.702869801650151E-9 3.406151836672811E-11
peri -5.703936691520546E-14 1.503871021664343E-13 8.964192069559807E-10 -5.702869801650151E-9 5.926274708414503E-9 -3.399394941133766E-11
i 4.448472042808045E-16 -1.037207434843647E-15 7.585911540849183E-14 3.406151836672811E-11 -3.399394941133766E-11 1.181261245395391E-11

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 12.9   n/a MPO350833  
diameter diameter 16.39 km 0.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
rotation period rot_per 10.526 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
[Mas, V.; Fornas, G.; Lozano, J.; Rodrigo, O.; et al. (2018) Minor Planet Bull. 45, 76-82.]
geometric albedo albedo 0.055   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3983 Sakiko (1984 SX)          Discovered 1984-Sep-20 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1984 SX = 1952 FX = 1971 BO = 1975 EG3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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