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17490 (1991 UC3)
Classification: Main-belt Asteroid          SPK-ID: 2017490
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1938665009209365 3.6985e-08  
a 2.734297882910245 1.1163e-08 au
q 2.204209119874911 1.0054e-07 au
i 3.117340562562746 4.1236e-06 deg
node 190.1086301153329 6.4989e-05 deg
peri 182.7985577459414 6.5603e-05 deg
M 175.2024824199742 9.2273e-06 deg
tp 2458396.779731350985
(2018-Oct-05.27973135)
4.114e-05 TDB
period 1651.45660447936
4.52
1.0113e-05
2.769e-08
d
yr
n .2179893792083589 1.335e-09 deg/d
Q 3.264386645945578 1.3327e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1464  
   data-arc span      23836 days (65.26 yr)  
   first obs. used      1955-12-11  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50584  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:04:28  

Additional Information
 Earth MOID = 1.2032 au 
 Jupiter MOID = 2.20132 au 
 T_jup = 3.323 
[ 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 14.47   n/a MPCxxxxx  
diameter diameter 6.881 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17490 (1991 UC3)          Discovered 1991-Oct-31 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 UC3 = 1982 UD11 = 1982 VU8 = 1986 QP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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