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JPL Small-Body Database Browser
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39814 (1997 XF8)
Classification: Main-belt Asteroid          SPK-ID: 2039814
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978916303063409 5.6715e-08  
a 2.540854720232342 1.1163e-08 au
q 2.038040837274002 1.4589e-07 au
i 7.011154140864001 6.0309e-06 deg
node 297.1572402661124 3.4001e-05 deg
peri 185.329169740848 3.5864e-05 deg
M 190.1383196766811 1.3925e-05 deg
tp 2459698.509113296689
(2022-Apr-29.00911330)
6.0348e-05 TDB
period 1479.340604122774
4.05
9.7493e-06
2.669e-08
d
yr
n .2433516655979807 1.6038e-09 deg/d
Q 3.043668603190682 1.3373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      9279 days (25.40 yr)  
   first obs. used      1994-02-10  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5005  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 05:52:13  

Additional Information
 Earth MOID = 1.05395 au 
 Jupiter MOID = 2.04613 au 
 T_jup = 3.408 
[ 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 14.6   n/a MPO385070  
diameter diameter 3.313 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39814 (1997 XF8)          Discovered 1997-Dec-07 by ODAS at Caussols
Reference: 20020526/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
2161-Feb-20 08:29 00:03 Amphi 0.0330506685631635 0.0330475554840723 0.0330537959528022 3.81769578667362 3.8176957411128 2510399.853371647 2.55049181380791 1187.47593706399 60.6896189653714 -83.0626082819974 80827.2090041542 T 24 CATAB v2.0f-lin.ifort 2020-Jan-29 05:52:37 2020-Jan-29 05:52

Alternate Designations
 1997 XF8 = 2000 QK23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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