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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 ]

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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470813320505409 4.3496e-08  
a 2.662100310848996 1.0916e-08 au
q 2.004345019992267 1.1991e-07 au
i 12.3994899070964 3.8871e-06 deg
node 207.87333956558 1.7192e-05 deg
peri 192.1535744552247 1.8868e-05 deg
M 332.2803390065634 9.034e-06 deg
tp 2459322.657592484255
(2021-Apr-18.15759248)
4.0249e-05 TDB
period 1586.481642208556
4.34
9.7581e-06
2.672e-08
d
yr
n .2269172175852225 1.3957e-09 deg/d
Q 3.319855601705725 1.3613e-08 au
  Orbit Determination Parameters
   # obs. used (total)      892  
   data-arc span      15799 days (43.26 yr)  
   first obs. used      1977-10-18  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4793  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:17:08  

Additional Information
 Earth MOID = 1.01245 au 
 Jupiter MOID = 2.11346 au 
 T_jup = 3.308 
[ show covariance matrix ]

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 15.32   n/a E2021B10  
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1935-Aug-16 15:18 00:02 Eunom 0.0475517308839009 0.0475395073299789 0.0475639559007564 4.73408586340256 4.73408580104467 2428031.137510559 1.8101281714262 737.828939824301 37.6915893175408 34.4070887160331 106861.526134577 T 22 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:10 2021-Feb-24 07:17

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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