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246167 Joskohn (2007 RF8)
Classification: Main-belt Asteroid          SPK-ID: 2246167
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .193925471347312 4.3075e-08  
a 2.634365784445838 1.78e-08 au
q 2.123495157995948 1.1185e-07 au
i 10.87648809167899 5.859e-06 deg
node 271.835428978526 3.0905e-05 deg
peri 40.52701134869274 3.636e-05 deg
M 75.45901510172224 1.9372e-05 deg
tp 2458873.143345155168
8.2513e-05 TDB
period 1561.753696165721
n .2305100995655333 2.3363e-09 deg/d
Q 3.145236410895729 2.1252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      333  
   data-arc span      8203 days (22.46 yr)  
   first obs. used      1998-07-26  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4891  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:54:29  

Additional Information
 Earth MOID = 1.11956 au 
 Jupiter MOID = 2.14475 au 
 T_jup = 3.346 
[ 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 15.97   n/a E2021B55  
diameter diameter 3.977 km 0.281 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.049   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

246167 Joskohn           Discovered 2007 Sept. 5 by P. Kocher at Marly.
Jos Kohn (b. 1988) studied physics at the university of Fribourg, Switzerland. He promotes astronomy to more than 600 adults and children throughout the country per year and is also a member of the observatory of Ependes, where he performs astronomy experiments with students.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-10-05Last Updated: 2017-10-09

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
2127-Jun-10 04:31 00:04 Eunom 0.0266874815120726 0.0266021629848016 0.0267728006559971 4.95447992073464 4.95447981456796 2498090.687849413 4.15901369642304 4256.93201686702 71.0592575410549 -2.78554592219262 2883.0052083729 T 15 CATAB v2.0f-lin.ifort 2021-Apr-14 01:54:30 2021-Apr-14 01:54
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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