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8510 (1991 PT8)
Classification: Main-belt Asteroid          SPK-ID: 2008510
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216278494556899 3.6382e-08  
a 2.978943534697061 1.4495e-08 au
q 2.616621038921926 1.0854e-07 au
i 11.81176694928043 4.0503e-06 deg
node 154.6379426816056 1.9931e-05 deg
peri 280.1321260927049 2.6057e-05 deg
M 182.4141621565694 1.7361e-05 deg
tp 2460322.898112861906
(2024-Jan-13.39811286)
9.3211e-05 TDB
period 1877.983766500125
5.14
1.3707e-05
3.753e-08
d
yr
n .191694947752881 1.3991e-09 deg/d
Q 3.341266030472196 1.6258e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      10962 days (30.01 yr)  
   first obs. used      1991-08-05  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 19:37:46  

Additional Information
 Earth MOID = 1.66369 au 
 Jupiter MOID = 1.96347 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457463.5 (2016-Mar-16.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1220382195163536 3.6349e-08  
q 2.615622592427519 1.0845e-07 au
tp 2456569.486011323439
(2013-Oct-03.98601132)
8.5329e-05 TDB
node 154.6490175006934 1.9933e-05 deg
peri 280.8104169081919 2.6024e-05 deg
i 11.81103008046456 4.0502e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      10962 days (30.01 yr)  
   first obs. used      1991-08-05  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5066  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 19:37:46  

Additional Information
 Jupiter MOID = 1.96347 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.321281983262324E-15 -3.914730519240872E-15 -1.211890098700319E-13 -4.280273430994467E-15 -3.503668416278376E-14 -1.373324970132151E-15
q -3.914730519240872E-15 1.176062645108186E-14 4.926152721980061E-13 1.345640754013018E-14 1.441397093582323E-13 4.418786597932137E-15
tp -1.211890098700319E-13 4.926152721980061E-13 7.28103188175921E-9 -4.30427439701078E-12 1.446414454386082E-9 -2.457676126624954E-12
node -4.280273430994467E-15 1.345640754013018E-14 -4.30427439701078E-12 3.973328294848643E-10 -3.892682592441029E-10 2.191898285519855E-12
peri -3.503668416278376E-14 1.441397093582323E-13 1.446414454386082E-9 -3.892682592441029E-10 6.772699527974902E-10 -2.606204292805749E-12
i -1.373324970132151E-15 4.418786597932137E-15 -2.457676126624954E-12 2.191898285519855E-12 -2.606204292805749E-12 1.64037987005988E-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 13.65   n/a MPO636194  
diameter diameter 7.647 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8510 (1991 PT8)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 19980313/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
1914-Feb-05 10:12 00:02 Jupiter 1.98682207345314 1.98682168651115 1.98682246039558 3.64810129559906 3.52930623985728 2420168.924988623 2.26471613430193 149.04450431445 16.6289699073609 -84.3763663420848 2954885.90314885 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 19:37:58 2021-Aug-24 19:37
1950-Jul-22 07:32 00:01 Jupiter 1.99073512517915 1.99073466315045 1.99073558720921 4.45562492430711 4.35908578889601 2433484.813845171 1.38442079308618 124.969317229679 15.2886054935402 83.8897036739831 3910049.35101 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 19:37:58 2021-Aug-24 19:37
2032-Jun-18 15:20 < 00:01 Jupiter 1.99410428533784 1.99410386729329 1.99410470338238 3.41364781109733 3.28686242232457 2463402.138847340 0.411729165188294 53.0688596646209 18.7742816927387 -85.2097270865779 3658998.32824885 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 19:37:58 2021-Aug-24 19:37
2068-Dec-06 07:38 00:01 Jupiter 1.96443768593545 1.96443734600349 1.9644380258674 4.22130575097037 4.11789582687529 2476721.817984333 1.14193024070486 100.682320876119 15.347063978561 -88.8597315825752 3846948.12505563 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 19:37:58 2021-Aug-24 19:37
2187-Apr-23 22:08 00:04 Jupiter 1.94796442825984 1.94796405818467 1.94796479833755 4.00213523251241 3.89197091081893 2519958.422373418 3.68621245012609 290.411501406402 15.3202725572732 -87.1047023908667 3513973.47784868 T 30 CATAB v2.0g-lin.ifort 2021-Aug-24 19:37:58 2021-Aug-24 19:37

Alternate Designations
 1991 PT8 = 1992 WV8 = 1994 EA9 = 1995 OD10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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