Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
187168 (2005 SR8)
Classification: Main-belt Asteroid          SPK-ID: 2187168
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03706723463274245 7.7056e-08  
a 3.150964043081517 4e-08 au
q 3.03416651957728 2.4402e-07 au
i 4.447110276341394 8.3104e-06 deg
node 20.39851389287132 8.2595e-05 deg
peri 175.0942544818202 0.00011924 deg
M 88.57886267657257 8.3856e-05 deg
tp 2458697.820474073686
(2019-Aug-02.32047407)
0.00047807 TDB
period 2042.977566716203
5.59
3.8902e-05
1.065e-07
d
yr
n .176213388666156 3.3554e-09 deg/d
Q 3.267761566585755 4.1483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      6267 days (17.16 yr)  
   first obs. used      2002-02-12  
   last obs. used      2019-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:17  

Additional Information
 Earth MOID = 2.03134 au 
 Jupiter MOID = 1.68675 au 
 T_jup = 3.202 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456673.5 (2014-Jan-16.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03583273671937149 7.8123e-08  
q 3.033022200262683 2.475e-07 au
tp 2456632.048828062452
(2013-Dec-05.54882806)
0.00048901 TDB
node 20.50642104459118 8.253e-05 deg
peri 170.1626215427557 0.00011942 deg
i 4.450856077178154 8.3129e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      222  
   data-arc span      6267 days (17.16 yr)  
   first obs. used      2002-02-12  
   last obs. used      2019-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55547  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:17  

Additional Information
 Jupiter MOID = 1.68675 au 
 T_jup = 3.202 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.103128553785193E-15 -1.908713753092952E-14 -9.581655304292179E-12 2.562515647843131E-14 -1.810930885372545E-12 -5.776577756145254E-16
q -1.908713753092952E-14 6.125403462326491E-14 2.468417734875984E-11 -1.02236178946386E-13 4.758776229142857E-12 4.406720191923933E-15
tp -9.581655304292179E-12 2.468417734875984E-11 2.391317148408732E-7 9.551600951939389E-11 4.22457601110602E-8 -2.180321139778702E-11
node 2.562515647843131E-14 -1.02236178946386E-13 9.551600951939389E-11 6.811266583793536E-9 -6.775095017992887E-9 -2.525241898780716E-10
peri -1.810930885372545E-12 4.758776229142857E-12 4.22457601110602E-8 -6.775095017992887E-9 1.426001025867801E-8 2.480297675236667E-10
i -5.776577756145254E-16 4.406720191923933E-15 -2.180321139778702E-11 -2.525241898780716E-10 2.480297675236667E-10 6.910487844488737E-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 15.7   n/a MPO433232  

187168 (2005 SR8)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ 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
1906-Feb-25 08:32 00:06 Jupiter 1.92782352100567 1.92782102381927 1.92782601819119 3.33027158811679 3.19561799323525 2417266.855585939 6.35772670974783 109.955854530163 67.4998441372873 -21.2925310977931 873142.182603723 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
1916-Jul-28 16:40 00:06 Jupiter 1.70471069865139 1.70470965106973 1.7047117462349 2.77410108245273 2.58880153854016 2421073.194167503 5.78861552882906 189.320973249032 31.7493958378692 82.7495844668182 1533611.37744486 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
1926-Dec-28 03:13 00:05 Jupiter 1.76705488159579 1.76705334578224 1.76705641741426 2.87592815970506 2.70412278493899 2424877.634202109 5.10227790924696 200.32750155511 29.9036294401215 -74.9017567587149 1595993.76076809 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2000-Oct-06 00:47 < 00:01 Jupiter 1.85207777690435 1.85207715972538 1.85207839408342 3.07608998371961 2.92363760845296 2451823.532630384 0.89352467117407 73.2103832847591 19.819843174201 -79.5690784422709 2537329.73390661 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2011-Mar-08 13:25 < 00:01 Jupiter 1.68463968870517 1.68463893593827 1.68464044147226 2.72733160870071 2.53628758417722 2455629.058806944 0.35522830823304 89.8064143820319 18.5973127792843 -80.4798590419393 1556179.58783854 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2021-Aug-09 21:34 < 00:01 Jupiter 1.81718707857629 1.81718626467562 1.81718789247676 3.01363239815176 2.85477589960538 2459436.398665320 0.594517802961872 64.8854217523623 27.9198643037685 -88.79034354868 1698530.84622206 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2095-May-20 06:00 00:05 Jupiter 1.79653311024122 1.79653149998294 1.79653472049888 2.90240317738024 2.73514019886453 2486382.750296517 4.83062741883327 73.651408097624 61.4630938561091 -81.8948959029688 1181021.62022601 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2105-Oct-18 03:17 00:05 Jupiter 1.6950050260295 1.69500409341376 1.69500595865255 2.7607108506142 2.57334233496537 2490185.636726729 5.47127948702495 303.661827531671 23.5183804017141 -86.234088732531 1494665.63043531 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2116-Mar-22 15:31 00:06 Jupiter 1.89009289505479 1.89009032088341 1.89009546922724 3.22901939076819 3.08711680392321 2493994.146857476 6.04695633325587 155.97023215339 47.0616803244904 -49.2969490043981 1392530.44464052 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2189-Dec-29 15:28 00:10 Jupiter 1.74172542717477 1.74172283452286 1.74172801982669 2.75737986907465 2.57497944221443 2520939.144752350 10.4602217818455 145.644634825167 61.9866889201858 51.0027598341705 1084638.82726225 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
2200-May-31 22:24 00:11 Jupiter 1.71096095030943 1.71095882603095 1.71096307465297 2.8174274251424 2.6358649615545 2524744.433434559 11.0265224437979 592.754985576037 25.9250733412693 -82.8852598975648 1554692.00279587 T 12 CATAB v2.0f-lin.ifort 2021-Apr-13 21:54:18 2021-Apr-13 21:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-22 02:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin