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59633 (1999 JC78)
Classification: Main-belt Asteroid          SPK-ID: 2059633
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164069935546476 1.0027e-08  
a 2.560451883792052 8.3743e-09 au
q 2.262397377858485 2.4599e-08 au
i 12.92018872546963 5.6498e-07 deg
node 207.1467674990236 1.2029e-06 deg
peri 21.89369095490227 9.6029e-06 deg
M 108.4434035580013 8.4995e-06 deg
tp 2458749.710289776554
(2019-Sep-23.21028978)
3.4701e-05 TDB
period 1496.488401838497
4.10
7.3417e-06
2.01e-08
d
yr
n .2405631741333413 1.1802e-09 deg/d
Q 2.858506389725619 9.3491e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2235  
   data-arc span      7923 days (21.69 yr)  
   first obs. used      1999-05-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48473  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:38:46  

Additional Information
 Earth MOID = 1.25732 au 
 Jupiter MOID = 2.12286 au 
 T_jup = 3.390 
[ 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 13.80   n/a MPCxxxxx  
diameter diameter 5.718 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.44422 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.215   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59633 (1999 JC78)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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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
1960-Jul-20 23:09 00:01 Europ 0.0299967661182341 0.0299892398342563 0.0300042926569092 4.51105994679918 4.51105986825416 2437136.464541616 1.46647434132335 399.710889352892 24.420992925359 20.2437902731972 64408.8917971635 T 34 CATAB v2.0f-lin.ifort 2021-Apr-13 11:39:39 2021-Apr-13 11:39

Alternate Designations
 1999 JC78 = 2000 RB33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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