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160949 (2002 AD99)
Classification: Main-belt Asteroid          SPK-ID: 2160949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1776171494491006 6.6354e-08  
a 2.453093473809044 1.7948e-08 au
q 2.01738200365889 1.5519e-07 au
i 8.528614060806261 5.9715e-06 deg
node 319.36150832 3.8021e-05 deg
peri 258.9712363259426 4.0693e-05 deg
M 202.1865068965758 1.4629e-05 deg
tp 2459615.692744053618
(2022-Feb-05.19274405)
5.8331e-05 TDB
period 1403.361547254778
3.84
1.5401e-05
4.217e-08
d
yr
n .2565269090522135 2.8153e-09 deg/d
Q 2.888804943959199 2.1136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      6938 days (19.00 yr)  
   first obs. used      2000-11-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56086  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:43:44  

Additional Information
 Earth MOID = 1.03138 au 
 Jupiter MOID = 2.16973 au 
 T_jup = 3.458 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456934.5 (2014-Oct-04.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773030025866227 6.6354e-08  
q 2.018263456573851 1.5506e-07 au
tp 2456809.366041938976
(2014-May-31.86604194)
5.9204e-05 TDB
node 319.41639585963 3.8011e-05 deg
peri 259.015388890621 4.0717e-05 deg
i 8.529052880934778 5.9738e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      575  
   data-arc span      6938 days (19.00 yr)  
   first obs. used      2000-11-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56086  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:43:44  

Additional Information
 Jupiter MOID = 2.16973 au 
 T_jup = 3.458 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.402840972918251E-15 -1.025606075508937E-14 -2.195598862935519E-12 -3.139783567988175E-14 -6.096983495827829E-13 -7.143253613608991E-15
q -1.025606075508937E-14 2.404488731267707E-14 5.132578769927628E-12 7.423784241454069E-14 1.420534291644058E-12 1.694141040856424E-14
tp -2.195598862935519E-12 5.132578769927628E-12 3.505090472254323E-9 2.861498597542689E-11 9.023990628906087E-10 4.831996157237945E-12
node -3.139783567988175E-14 7.423784241454069E-14 2.861498597542689E-11 1.444844990386735E-9 -1.420916299343224E-9 1.237539928292991E-10
peri -6.096983495827829E-13 1.420534291644058E-12 9.023990628906087E-10 -1.420916299343224E-9 1.657884187396053E-9 -1.2115205598588E-10
i -7.143253613608991E-15 1.694141040856424E-14 4.831996157237945E-12 1.237539928292991E-10 -1.2115205598588E-10 3.568649527394142E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO493916  
diameter diameter 3.896 km 0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160949 (2002 AD99)          Discovered 2002-Jan-08 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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