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70693 (1999 UR23)
Classification: Main-belt Asteroid          SPK-ID: 2070693
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07827279600367693 3.0474e-08  
a 2.308287945991373 7.3333e-09 au
q 2.127611794477044 7.2944e-08 au
i 6.506971600202644 4.5263e-06 deg
node 331.7537660261879 3.0114e-05 deg
peri 111.9745166370185 4.5474e-05 deg
M 309.8760128704751 3.3879e-05 deg
tp 2459378.851395336356
(2021-Jun-13.35139534)
0.00012073 TDB
period 1280.95361119563
3.51
6.1042e-06
1.671e-08
d
yr
n .2810406222782568 1.3393e-09 deg/d
Q 2.488964097505702 7.9073e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      12952 days (35.46 yr)  
   first obs. used      1985-09-19  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:51:12  

Additional Information
 Earth MOID = 1.15347 au 
 Jupiter MOID = 2.64373 au 
 T_jup = 3.574 
[ 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 14.78   n/a MPCxxxxx  
rotation period rot_per 3.05103 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

70693 (1999 UR23)          Discovered 1999-Oct-28 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UR23 = 1985 SQ2 = 2001 AF18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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