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46687 (1997 AP18)
Classification: Main-belt Asteroid          SPK-ID: 2046687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1431551146936837 3.9732e-08  
a 2.365408534644732 8.4227e-09 au
q 2.026788204570247 9.3219e-08 au
i 3.107974910244034 3.4266e-06 deg
node 76.67242987769491 8.168e-05 deg
peri 96.83414155281667 8.2632e-05 deg
M 159.0888728085587 1.5124e-05 deg
tp 2458613.287935112497
(2019-May-09.78793511)
5.44e-05 TDB
period 1328.794023287141
3.64
7.0974e-06
1.943e-08
d
yr
n .2709223504102163 1.447e-09 deg/d
Q 2.704028864719217 9.6285e-09 au
  Orbit Determination Parameters
   # obs. used (total)      894  
   data-arc span      10169 days (27.84 yr)  
   first obs. used      1992-11-27  
   last obs. used      2020-09-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:51:42  

Additional Information
 Earth MOID = 1.03419 au 
 Jupiter MOID = 2.26082 au 
 T_jup = 3.532 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.78   n/a E2021B10  

46687 (1997 AP18)          Discovered 1997-Jan-15 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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