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JPL Small-Body Database Browser
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243659 (1999 UT57)
Classification: Main-belt Asteroid          SPK-ID: 2243659
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309170122307486 6.3163e-08  
a 2.572098222073779 2.6242e-08 au
q 2.235366807675859 1.6311e-07 au
i 16.46677600575512 7.1986e-06 deg
node 79.67056968186006 2.4849e-05 deg
peri 330.3039581914679 3.7834e-05 deg
M 257.7800631638813 3.2877e-05 deg
tp 2459028.321748326417
(2020-Jun-27.82174833)
0.00014063 TDB
period 1506.710277511048
4.13
2.3058e-05
6.313e-08
d
yr
n .2389311371756806 3.6566e-09 deg/d
Q 2.908829636471698 2.9678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      6749 days (18.48 yr)  
   first obs. used      1999-10-31  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56168  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 06:25:58  

Additional Information
 Earth MOID = 1.25979 au 
 Jupiter MOID = 2.44046 au 
 T_jup = 3.360 
[ 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 16.0   n/a MPO300152  

243659 (1999 UT57)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ 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
1928-Mar-03 20:51 00:01 Hygie 0.0113134529472861 0.011283254479169 0.0113436782136279 6.81058165001831 6.81058114857359 2425309.368968932 1.19092995409997 1738.09157456835 58.6155609249641 29.9934651419352 14446.4789077248 T 10 CATAB v2.0e-lin.ifort 2018-May-07 06:26:00 2018-Dec-17 23:05
2019-Jan-22 02:08 < 00:01 Eunom 0.0105918988560331 0.0105905933224584 0.0105932047869426 8.06137662487849 8.06137646047507 2458505.588844940 0.689550232818404 206.79441421403 55.5604328297434 80.1959767199584 28123.3227256712 T 10 CATAB v2.0e-lin.ifort 2018-May-07 06:26:00 2018-Dec-17 23:05
2134-May-31 10:45 00:02 Hygie 0.0175293626444919 0.0174909845195011 0.0175677999230099 6.63590392919265 6.63590359704115 2500637.948145645 2.14422377111951 2498.0956104018 54.2332887124597 -39.9991830845393 31066.9590956774 T 10 CATAB v2.0e-lin.ifort 2018-May-07 06:26:00 2018-Dec-17 23:05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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