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85993 (1999 JU28)
Classification: Main-belt Asteroid          SPK-ID: 2085993
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1629990753169695 3.2839e-08  
a 2.741559840316324 1.5256e-08 au
q 2.294688121418625 9.1791e-08 au
i 2.491060083320658 4.2306e-06 deg
node 313.6869545417606 8.6687e-05 deg
peri 325.3757450144964 8.7702e-05 deg
M 234.094770457938 1.5008e-05 deg
tp 2459780.377542631705
(2022-Jul-19.87754263)
7.1021e-05 TDB
period 1658.040067967734
4.54
1.384e-05
3.789e-08
d
yr
n .2171238240588802 1.8124e-09 deg/d
Q 3.188431559214024 1.7743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      10753 days (29.44 yr)  
   first obs. used      1991-10-10  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54293  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:08:02  

Additional Information
 Earth MOID = 1.2769 au 
 Jupiter MOID = 1.9493 au 
 T_jup = 3.329 
[ 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 15.51   n/a MPCxxxxx  

85993 (1999 JU28)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ 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
1906-Sep-11 21:12 00:03 Jupiter 1.94632508976205 1.94632461289549 1.94632556662862 2.16292716286067 1.95137709856463 2417465.383015077 2.6199515792801 60.2333558286628 14.7250121036684 85.7273371386152 3151518.0252871 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:08:05 2021-May-04 08:08
1965-May-14 06:48 00:01 Jupiter 1.94553696357392 1.94553663515152 1.94553729199631 2.24982874274765 2.04719209016298 2438894.783580776 1.22620260518981 49.0071825027441 8.8957047077637 -88.5776245920882 3054514.60308924 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:08:05 2021-May-04 08:08
2060-Nov-26 05:39 00:01 Jupiter 1.9400958978255 1.94009560560534 1.94009619004555 2.16049000908143 1.94795820243125 2473789.735174404 1.08992997212445 46.2939196927918 11.1233989554041 -85.672187488795 3272731.4252324 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:08:05 2021-May-04 08:08
2119-Jul-31 14:10 00:03 Jupiter 1.95275831029524 1.95275780796785 1.95275881262307 2.30123819736278 2.1043249079197 2495220.090392417 2.5188521941862 75.0846640701134 7.58977577263076 -88.6812988900753 2822268.72085492 T 21 CATAB v2.0g-lin.ifort 2021-May-04 08:08:05 2021-May-04 08:08

Alternate Designations
 1999 JU28 = 2000 SZ101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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