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74652 (1999 RE85)
Classification: Main-belt Asteroid          SPK-ID: 2074652
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815457690745959 5.3549e-08  
a 2.38900993574312 1.3911e-08 au
q 1.955295289631785 1.2475e-07 au
i 1.19306520403724 5.638e-06 deg
node 178.0651432962879 0.00021158 deg
peri 178.4489169346668 0.000212 deg
M 270.2288399476698 1.6111e-05 deg
tp 2459536.825423209199
(2021-Nov-18.32542321)
6.2387e-05 TDB
period 1348.731065575315
3.69
1.178e-05
3.225e-08
d
yr
n .2669175562041631 2.3314e-09 deg/d
Q 2.822724581854456 1.6436e-08 au
  Orbit Determination Parameters
   # obs. used (total)      421  
   data-arc span      7560 days (20.70 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56728  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:42:52  

Additional Information
 Earth MOID = .949288 au 
 Jupiter MOID = 2.62165 au 
 T_jup = 3.510 
[ 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 16.66   n/a E2021B10  

74652 (1999 RE85)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/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
1971-Dec-14 12:11 < 00:01 Juno 0.0398635595751311 0.0398611533539033 0.0398659666846492 5.35830394487537 5.35830388791897 2441300.007730651 0.517896010750079 340.668323965651 44.0593097199147 -70.7186053847829 127818.421216055 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 21:42:54 2020-Nov-12 21:42

Alternate Designations
 1999 RE85 = 2002 KT2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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