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3798 de Jager (2402 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2003798
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07655181850024363 2.1882e-08  
a 2.168163471917653 6.053e-09 au
q 2.002186615336555 4.6724e-08 au
i 2.431421745213885 1.0781e-06 deg
node 314.3733126813678 2.0247e-05 deg
peri 244.9628539278271 2.3228e-05 deg
M 72.08069871903285 1.7044e-05 deg
tp 2459163.018245032926
(2020-Nov-09.51824503)
5.4941e-05 TDB
period 1166.101789825637
3.19
4.8832e-06
1.337e-08
d
yr
n .3087209051054021 1.2928e-09 deg/d
Q 2.334140328498751 6.5163e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2564  
   data-arc span      26078 days (71.40 yr)  
   first obs. used      1950-01-28  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:43:24  

Additional Information
 Earth MOID = 1.00169 au 
 Jupiter MOID = 2.62706 au 
 T_jup = 3.686 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.83   n/a E2021B10  
diameter diameter 4.686 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.292   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3798 de Jager (2402 T-3)          Discovered 1977-Oct-16 by van Houten-Groeneveld, I. at Palomar
Discovered in the course of the Third Trojan Survey by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 2402 T-3 = 1950 BY = 1982 BO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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