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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641786806336377 5.0189e-08  
a 3.192940252853917 2.3837e-08 au
q 2.668727534798327 1.6608e-07 au
i 16.91335087735155 8.9151e-06 deg
node 317.436131008753 1.4235e-05 deg
peri 131.7483222090568 3.1858e-05 deg
M 289.7345848096688 2.6926e-05 deg
tp 2459607.246412241124
(2022-Jan-27.74641224)
0.0001568 TDB
period 2083.937140486062
5.71
2.3337e-05
6.389e-08
d
yr
n .1727499323305082 1.9345e-09 deg/d
Q 3.717152970909507 2.775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:17:07  

Additional Information
 Earth MOID = 1.71641 au 
 Jupiter MOID = 1.53059 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457561.5 (2016-Jun-22.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602651621356598 4.7575e-08  
q 2.68599434729249 1.5585e-07 au
tp 2457508.496696617770
(2016-Apr-29.99669662)
0.00016202 TDB
node 317.9267422362748 1.414e-05 deg
peri 129.8150992082757 3.3123e-05 deg
i 16.86587353136167 8.9221e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:17:07  

Additional Information
 Jupiter MOID = 1.53059 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.263398899819099E-15 -7.354083953142473E-15 5.075918212803925E-12 -7.318577556076316E-15 9.982726341248687E-13 7.513775554042156E-15
q -7.354083953142473E-15 2.428817722346291E-14 -1.563306975439839E-11 3.486523243671753E-14 -3.104919573206442E-12 -1.054306346369264E-14
tp 5.075918212803925E-12 -1.563306975439839E-11 2.624976248405687E-8 -3.135711886776747E-11 4.863097902219457E-9 3.982632154139218E-11
node -7.318577556076316E-15 3.486523243671753E-14 -3.135711886776747E-11 1.999384487970656E-10 -1.974033951988587E-10 6.865367050307462E-11
peri 9.982726341248687E-13 -3.104919573206442E-12 4.863097902219457E-9 -1.974033951988587E-10 1.097102386529345E-9 -5.920241627997959E-11
i 7.513775554042156E-15 -1.054306346369264E-14 3.982632154139218E-11 6.865367050307462E-11 -5.920241627997959E-11 7.960392452503771E-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 13.68   n/a E2021B10  

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

[ hide close-approach data ]
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
1974-Sep-02 01:44 00:02 Jupiter 1.91250804038588 1.91250582815458 1.91251025305922 4.93169957471377 4.84106282124012 2442292.572289773 2.11871853670297 1758.08586667795 57.2229849155364 86.9556678760046 1700283.39414951 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
1985-Sep-17 04:21 00:01 Jupiter 1.61833948859771 1.61833824491701 1.61834073229082 4.79648027827599 4.68609040604442 2446325.681265566 1.33626730016349 415.730673856494 48.0524495538058 84.8856550933159 1711675.9829099 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
1996-Nov-10 06:38 < 00:01 Jupiter 1.61804700526998 1.61804627648138 1.61804773406041 4.494149542807 4.37611827166501 2450397.776062989 0.842969033714312 543.23487353421 30.7549370595642 88.9072907260923 1874951.47827742 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
2007-Dec-12 23:54 < 00:01 Jupiter 1.87847099268654 1.87846995272236 1.87847203265659 3.80759483174543 3.68726960868859 2454447.495781088 0.668557971024621 220.155081936702 25.0319320421875 80.3260224954313 1541162.28261423 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
2117-Feb-09 08:15 00:03 Jupiter 1.93378917614765 1.93378658408495 1.93379176855452 4.73749095545417 4.64411422273039 2494317.843624709 2.94955621674721 1636.50707785222 74.536153760865 86.3327308164355 1538495.29907164 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
2128-Feb-19 00:44 00:03 Jupiter 1.60024834052482 1.60024684079238 1.60024984025762 4.75467161633797 4.64201339344207 2498344.530810334 2.74816093087628 395.454826060471 72.2623514193301 -89.2108029316347 1630785.58763433 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
2139-Apr-16 08:20 00:03 Jupiter 1.57196637516671 1.57196504736156 1.5719677030823 4.56247412805714 4.44280433168677 2502418.847255182 3.05178851977062 830.006907000112 34.0762937733223 85.9815661403049 1757264.2628454 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17
2150-May-26 13:07 00:04 Jupiter 1.83127187077089 1.83126860916388 1.83127513257236 4.05370830093785 3.93795457719276 2506477.046750398 4.17485128237352 991.099914373258 26.1019944441275 80.0443325509101 1475327.1240839 T 24 CATAB v2.0f-lin.ifort 2021-Feb-24 07:17:09 2021-Feb-24 07:17

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