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3742 Sunshine (1981 EQ27)
Classification: Main-belt Asteroid          SPK-ID: 2003742
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260101725777535 1.9976e-08  
a 2.557272716212537 8.449e-09 au
q 2.235030339914215 5.3032e-08 au
i 2.733072788501821 1.5189e-06 deg
node 163.9414964961487 1.7111e-05 deg
peri 8.652851924496064 1.8504e-05 deg
M 267.1883357958901 9.9391e-06 deg
tp 2459585.591607447503
(2022-Jan-06.09160745)
4.1986e-05 TDB
period 1493.702110288873
4.09
7.4026e-06
2.027e-08
d
yr
n .24101191095618 1.1944e-09 deg/d
Q 2.87951509251086 9.5137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      14647 days (40.10 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:10:36  

Additional Information
 Earth MOID = 1.24001 au 
 Jupiter MOID = 2.08352 au 
 T_jup = 3.424 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457480.5 (2016-Apr-02.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1251538568808579 2.0062e-08  
q 2.237772355663014 5.3212e-08 au
tp 2458093.489113220613
(2017-Dec-05.98911322)
3.9596e-05 TDB
node 163.9895543972508 1.71e-05 deg
peri 8.973195041286937 1.8496e-05 deg
i 2.733158638758816 1.519e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      14647 days (40.10 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43256  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:10:36  

Additional Information
 Jupiter MOID = 2.08352 au 
 T_jup = 3.424 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.024666953815932E-16 -1.057438033897618E-15 1.167587316052289E-13 -3.744455826615245E-14 5.154418181437478E-14 1.244024457778289E-14
q -1.057438033897618E-15 2.83151961950466E-15 -2.257173574795333E-13 9.795918576240495E-14 -1.248628419358451E-13 -3.241661397545608E-14
tp 1.167587316052289E-13 -2.257173574795333E-13 1.567805434360602E-9 2.317323042539781E-11 2.798561155687509E-10 -3.188721062907189E-11
node -3.744455826615245E-14 9.795918576240495E-14 2.317323042539781E-11 2.924130118283022E-10 -2.872326431183833E-10 -6.681004358421671E-12
peri 5.154418181437478E-14 -1.248628419358451E-13 2.798561155687509E-10 -2.872326431183833E-10 3.420855146695736E-10 1.665171188155983E-13
i 1.244024457778289E-14 -3.241661397545608E-14 -3.188721062907189E-11 -6.681004358421671E-12 1.665171188155983E-13 2.307274090250938E-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 13.57   n/a MPCxxxxx  
diameter diameter 5.334 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.297   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3742 Sunshine (1981 EQ27)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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