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78918 (2003 SR107)
Classification: Main-belt Asteroid          SPK-ID: 2078918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2473725112013805 4.3536e-08  
a 2.663689944898867 1.1046e-08 au
q 2.004766274167368 1.2009e-07 au
i 12.39716859543107 3.8996e-06 deg
node 207.9044073344776 1.7291e-05 deg
peri 192.0247169906036 1.8944e-05 deg
M 287.0268281578134 8.8856e-06 deg
tp 2459322.373080679175
(2021-Apr-17.87308068)
4.0354e-05 TDB
period 1587.902870593256
4.35
9.877e-06
2.704e-08
d
yr
n .2267141187706906 1.4102e-09 deg/d
Q 3.322613615630366 1.3778e-08 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      15727 days (43.06 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:08  

Additional Information
 Earth MOID = 1.01386 au 
 Jupiter MOID = 2.10968 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457702.5 (2016-Nov-10.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2503551644627705 4.379e-08  
q 1.994261171275333 1.2104e-07 au
tp 2457735.335874028596
(2016-Dec-12.83587403)
3.4466e-05 TDB
node 208.0528327865235 1.7238e-05 deg
peri 191.7982996598924 1.8828e-05 deg
i 12.42816136397258 3.9077e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      15727 days (43.06 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:08  

Additional Information
 Jupiter MOID = 2.10968 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.917541598433669E-15 -5.291166605793777E-15 -5.090625693054393E-13 2.14709775441065E-15 -2.856201526984141E-14 -4.51252161939702E-15
q -5.291166605793777E-15 1.465140964640224E-14 1.470622351663445E-12 -5.995150833093374E-15 9.292616155167959E-14 1.329673604412159E-14
tp -5.090625693054393E-13 1.470622351663445E-12 1.187938503192854E-9 2.180964827362052E-12 2.668649130020841E-10 5.651622856884357E-12
node 2.14709775441065E-15 -5.995150833093374E-15 2.180964827362052E-12 2.971531594064976E-10 -2.890729430697141E-10 -6.109665271960152E-12
peri -2.856201526984141E-14 9.292616155167959E-14 2.668649130020841E-10 -2.890729430697141E-10 3.545109579399988E-10 7.131621905915045E-12
i -4.51252161939702E-15 1.329673604412159E-14 5.651622856884357E-12 -6.109665271960152E-12 7.131621905915045E-12 1.527035304976646E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO436333  
diameter diameter 4.915 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78918 (2003 SR107)          Discovered 2003-Sep-20 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 SR107 = 1977 UB5 = 1999 TX291 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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