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JPL Small-Body Database Browser
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376880 (2001 WE12)
Classification: Main-belt Asteroid          SPK-ID: 2376880
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2017906938151365 7.9955e-07  
a 2.527415847513719 2.5202e-08 au
q 2.017406850084555 2.0352e-06 au
i 5.317793295234839 1.5227e-05 deg
node 95.70821920088171 0.00019102 deg
peri 333.3625038471401 0.00022911 deg
M 216.2428993069585 0.00014211 deg
tp 2459586.557580554939
(2022-Jan-07.05758055)
0.00058597 TDB
period 1467.61953310589
4.02
2.1951e-05
6.01e-08
d
yr
n .2452951816729641 3.6689e-09 deg/d
Q 3.037424844942884 3.0288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      7817 days (21.40 yr)  
   first obs. used      1997-11-28  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:48:22  

Additional Information
 Earth MOID = 1.03343 au 
 Jupiter MOID = 2.26101 au 
 T_jup = 3.418 
[ 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 17.7   n/a MPO281784  

376880 (2001 WE12)          Discovered 2001-Nov-17 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20

[ 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
1956-May-21 04:07 00:41 Hygie 0.0412985378838105 0.0411572550879488 0.0414400122807844 5.1113266510205 5.11132646798551 2435614.671420705 40.6941422481363 8347.56655756277 1038.17002229553 32.7506873931497 3275.28429043649 T 10 CATAB v2.0e-lin.ifort 2019-Jul-13 15:48:23 2019-Jul-13 15:48
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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