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13778 (1998 US7)
Classification: Main-belt Asteroid          SPK-ID: 2013778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08809178791889208 3.4881e-08  
a 2.618223108409497 1.2001e-08 au
q 2.387579153619146 9.4884e-08 au
i 14.51081033721828 3.8723e-06 deg
node 211.2521645871772 1.4486e-05 deg
peri 18.13272053168008 2.9138e-05 deg
M 299.0617651640932 2.836e-05 deg
tp 2459658.436351308240
(2022-Mar-19.93635131)
0.00012279 TDB
period 1547.420707621208
4.24
1.0639e-05
2.913e-08
d
yr
n .2326451999943923 1.5996e-09 deg/d
Q 2.848867063199849 1.3058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1689  
   data-arc span      10591 days (29.00 yr)  
   first obs. used      1992-05-02  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:07:54  

Additional Information
 Earth MOID = 1.38297 au 
 Jupiter MOID = 2.12862 au 
 T_jup = 3.355 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457198.5 (2015-Jun-25.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08872695107520952 3.4773e-08  
q 2.385379062617595 9.4587e-08 au
tp 2456567.061663600668
(2013-Oct-01.56166360)
0.00011347 TDB
node 211.2775674646022 1.4484e-05 deg
peri 18.73504309173606 2.9082e-05 deg
i 14.51203896286463 3.8731e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1689  
   data-arc span      10591 days (29.00 yr)  
   first obs. used      1992-05-02  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47661  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:07:54  

Additional Information
 Jupiter MOID = 2.12862 au 
 T_jup = 3.355 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.209179824588625E-15 -3.268974297772772E-15 -5.95038892874381E-13 -2.321531535154011E-15 -1.357395485686566E-13 -2.375599330569307E-16
q -3.268974297772772E-15 8.946695039871658E-15 1.982629486125627E-12 5.898857690221176E-15 4.57623580976342E-13 1.001347845684127E-15
tp -5.95038892874381E-13 1.982629486125627E-12 1.287534388854604E-8 1.162869786920032E-13 2.874305455725885E-9 3.190008457642186E-12
node -2.321531535154011E-15 5.898857690221176E-15 1.162869786920032E-13 2.097879489481071E-10 -2.029039579323922E-10 -3.111045348289767E-13
peri -1.357395485686566E-13 4.57623580976342E-13 2.874305455725885E-9 -2.029039579323922E-10 8.457419580488159E-10 1.04952783643462E-12
i -2.375599330569307E-16 1.001347845684127E-15 3.190008457642186E-12 -3.111045348289767E-13 1.04952783643462E-12 1.500095672947169E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.23   n/a MPCxxxxx  
diameter diameter 3.688 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.326   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13778 (1998 US7)          Discovered 1998-Oct-22 by Korlevic, K. at Visnjan
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 US7 = 1992 JT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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