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78912 (2003 SK99)
Classification: Main-belt Asteroid          SPK-ID: 2078912
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1639317601525826 5.0072e-08  
a 3.194563229630291 2.4094e-08 au
q 2.670872856478279 1.6577e-07 au
i 16.91090342852724 8.953e-06 deg
node 317.4328512792295 1.4236e-05 deg
peri 131.5737383223254 3.1945e-05 deg
M 255.3564888910785 2.6959e-05 deg
tp 2459606.713302297779
(2022-Jan-27.21330230)
0.00015752 TDB
period 2085.52624538794
5.71
2.3594e-05
6.46e-08
d
yr
n .1726183023570794 1.9529e-09 deg/d
Q 3.718253602782304 2.8044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      8036 days (22.00 yr)  
   first obs. used      1998-11-16  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:07:11  

Additional Information
 Earth MOID = 1.71891 au 
 Jupiter MOID = 1.53074 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457547.5 (2016-Jun-08.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602661825699303 4.7651e-08  
q 2.685991058818353 1.5602e-07 au
tp 2457508.485980087236
(2016-Apr-29.98598009)
0.00016219 TDB
node 317.9267376704612 1.4141e-05 deg
peri 129.8125071242746 3.3146e-05 deg
i 16.86587509513111 8.9621e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1111  
   data-arc span      8036 days (22.00 yr)  
   first obs. used      1998-11-16  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:07:11  

Additional Information
 Jupiter MOID = 1.53074 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.270644912290481E-15 -7.374046804169917E-15 5.096018624999702E-12 -7.371830391408883E-15 1.001562783622534E-12 7.366591578482248E-15
q -7.374046804169917E-15 2.434322473780641E-14 -1.568748744048859E-11 3.497938556809019E-14 -3.113794228262048E-12 -1.005377112375843E-14
tp 5.096018624999702E-12 -1.568748744048859E-11 2.630662074786173E-8 -3.144021621004877E-11 4.872491981708839E-9 3.905829398128429E-11
node -7.371830391408883E-15 3.497938556809019E-14 -3.144021621004877E-11 1.999570284919884E-10 -1.974336929350481E-10 6.867062161869199E-11
peri 1.001562783622534E-12 -3.113794228262048E-12 4.872491981708839E-9 -1.974336929350481E-10 1.098674640878565E-9 -5.93652217226069E-11
i 7.366591578482248E-15 -1.005377112375843E-14 3.905829398128429E-11 6.867062161869199E-11 -5.93652217226069E-11 8.031968604776715E-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 13.6   n/a MPO445709  

78912 (2003 SK99)          Discovered 2003-Sep-19 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2003 SK99 = 2000 GH167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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