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79780 (1998 US37)
Classification: Main-belt Asteroid          SPK-ID: 2079780
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170152141755652 3.8358e-08  
a 2.336114918530685 8.9344e-09 au
q 2.062753931000084 8.8427e-08 au
i 7.032024509032918 4.3716e-06 deg
node 49.01948622571727 4.2013e-05 deg
peri 216.164128955524 4.7893e-05 deg
M 184.8034382525201 2.3214e-05 deg
tp 2459835.191685711339
(2022-Sep-12.69168571)
8.4549e-05 TDB
period 1304.186592345432
3.57
7.4818e-06
2.048e-08
d
yr
n .2760341212775241 1.5835e-09 deg/d
Q 2.609475906061286 9.9799e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1034  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-11-05  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:43:38  

Additional Information
 Earth MOID = 1.05032 au 
 Jupiter MOID = 2.45051 au 
 T_jup = 3.548 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457047.5 (2015-Jan-25.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1168707192080143 3.832e-08  
q 2.062633974989665 8.8303e-08 au
tp 2457227.983527735444
(2015-Jul-24.48352774)
8.3922e-05 TDB
node 49.03468058683443 4.1993e-05 deg
peri 216.386568645106 4.7895e-05 deg
i 7.034348099167183 4.3731e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1034  
   data-arc span      10690 days (29.27 yr)  
   first obs. used      1991-11-05  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55691  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:43:38  

Additional Information
 Jupiter MOID = 2.45051 au 
 T_jup = 3.548 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.46839600303976E-15 -3.370626354090894E-15 4.275013572482143E-13 9.426542669425517E-16 9.601478553504061E-14 -7.914313220231609E-16
q -3.370626354090894E-15 7.797497644223063E-15 -1.026743119246777E-12 -1.418504709933973E-15 -2.372567595018474E-13 1.912061749792065E-15
tp 4.275013572482143E-13 -1.026743119246777E-12 7.042854206269221E-9 9.81013178409683E-12 1.959903308876149E-9 -3.972572829039756E-12
node 9.426542669425517E-16 -1.418504709933973E-15 9.81013178409683E-12 1.763445978789969E-9 -1.747161274884075E-9 -3.151440912948881E-11
peri 9.601478553504061E-14 -2.372567595018474E-13 1.959903308876149E-9 -1.747161274884075E-9 2.293901870282572E-9 3.025533639963829E-11
i -7.914313220231609E-16 1.912061749792065E-15 -3.972572829039756E-12 -3.151440912948881E-11 3.025533639963829E-11 1.912442138218005E-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 15.34   n/a MPCxxxxx  
diameter diameter 2.946 km 0.642 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.154   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79780 (1998 US37)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 US37 = 2001 NZ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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