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52977 (1998 UE4)
Classification: Main-belt Asteroid          SPK-ID: 2052977
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .23442787776046 4.4284e-08  
a 2.34073071725311 9.435e-09 au
q 1.791998182798744 1.0768e-07 au
i 9.870252401275062 4.3019e-06 deg
node 126.950204799503 2.3381e-05 deg
peri 234.6355237701221 2.4919e-05 deg
M 43.38460053079633 1.0245e-05 deg
tp 2458842.862800551467
(2019-Dec-25.36280055)
3.6733e-05 TDB
period 1308.053804971393
3.58
7.9088e-06
2.165e-08
d
yr
n .2752180366218752 1.664e-09 deg/d
Q 2.889463251707476 1.1647e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1195  
   data-arc span      23335 days (63.89 yr)  
   first obs. used      1955-12-11  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50809  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:59:22  

Additional Information
 Earth MOID = .80808 au 
 Jupiter MOID = 2.59574 au 
 T_jup = 3.508 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456740.5 (2014-Mar-24.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2356057188884789 4.4344e-08  
q 1.788861588986316 1.0801e-07 au
tp 2456227.838550285382
(2012-Oct-27.33855029)
3.1488e-05 TDB
node 127.0372605948474 2.3399e-05 deg
peri 234.6562440799457 2.4907e-05 deg
i 9.868437690337345 4.301e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1195  
   data-arc span      23335 days (63.89 yr)  
   first obs. used      1955-12-11  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50809  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:59:22  

Additional Information
 Jupiter MOID = 2.59574 au 
 T_jup = 3.508 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.966386982660466E-15 -4.781722040652572E-15 -2.19901001983437E-13 -2.834943382885679E-15 -2.894817606405521E-14 -1.879357421100432E-15
q -4.781722040652572E-15 1.166519437277082E-14 5.302134625483108E-13 6.100684901417383E-15 7.455100093780158E-14 4.799802997349373E-15
tp -2.19901001983437E-13 5.302134625483108E-13 9.914813548823115E-10 2.959228934221559E-12 2.811810631133939E-10 2.099854195930335E-12
node -2.834943382885679E-15 6.100684901417383E-15 2.959228934221559E-12 5.47494882047263E-10 -5.379492339029211E-10 -4.194713318148638E-12
peri -2.894817606405521E-14 7.455100093780158E-14 2.811810631133939E-10 -5.379492339029211E-10 6.203402115291297E-10 4.71122496463896E-12
i -1.879357421100432E-15 4.799802997349373E-15 2.099854195930335E-12 -4.194713318148638E-12 4.71122496463896E-12 1.849897990680541E-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 14.8   n/a MPO337681  
diameter diameter 6.568 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52977 (1998 UE4)          Discovered 1998-Oct-21 by Korlevic, K. at Visnjan
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UE4 = 1987 SN8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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