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295651 (2008 ST307)
Classification: Main-belt Asteroid          SPK-ID: 2295651
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05273235130000217 5.5735e-08  
a 3.088643141952035 4.183e-08 au
q 2.925771726750278 1.7964e-07 au
i 9.77171066668604 6.8779e-06 deg
node 245.9318638585223 3.9519e-05 deg
peri 214.1124755675388 8.2122e-05 deg
M 347.7246056739633 7.3097e-05 deg
tp 2459068.105647727754
(2020-Aug-06.60564773)
0.000403 TDB
period 1982.66813558642
5.43
4.0277e-05
1.103e-07
d
yr
n .1815735036733828 3.6886e-09 deg/d
Q 3.251514557153793 4.4036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1992-11-25  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56378  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:31:22  

Additional Information
 Earth MOID = 1.94798 au 
 Jupiter MOID = 1.97026 au 
 T_jup = 3.201 
[ 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 15.7   n/a MPO503287  
diameter diameter 3.191 km 0.867 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295651 (2008 ST307)          Discovered 2008-Sep-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ 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
2106-Jun-02 15:18 00:06 Jupiter 1.99877833101419 1.99877766629387 1.99877899573475 4.25582075488054 4.15505355862722 2490413.137524795 5.5799555978949 363.012504051121 29.5753136598132 -87.7501035681968 2257482.81481707 T 15 CATAB v2.0f-lin.ifort 2019-Dec-14 18:31:24 2019-Dec-14 18:31
2176-Jun-17 09:02 00:11 Jupiter 1.99676843534949 1.99676754307318 1.99676932764986 3.20318904095265 3.06790265447176 2515995.876304362 10.7473928191463 565.412135700026 26.3405652620864 -83.7406008305981 2218818.27877048 T 15 CATAB v2.0f-lin.ifort 2019-Dec-14 18:31:24 2019-Dec-14 18:31

Alternate Designations
 2008 ST307 = 2008 SB185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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