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JPL Small-Body Database Browser
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2999 Dante (1981 CY)
Classification: Main-belt Asteroid          SPK-ID: 2002999
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1050622280869541 2.655e-08  
a 2.271419833865895 7.0111e-09 au
q 2.032779405199045 6.0078e-08 au
i 6.76454732077057 4.2471e-06 deg
node 74.92704084132441 3.4077e-05 deg
peri 39.5029072319028 4.314e-05 deg
M 200.9594198543709 2.5711e-05 deg
tp 2459552.895329428338
(2021-Dec-04.39532943)
8.9821e-05 TDB
period 1250.387281108437
3.42
5.7893e-06
1.585e-08
d
yr
n .2879107980695941 1.333e-09 deg/d
Q 2.510060262532745 7.7477e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2014  
   data-arc span      24368 days (66.72 yr)  
   first obs. used      1952-11-16  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:36:14  

Additional Information
 Earth MOID = 1.05437 au 
 Jupiter MOID = 2.5802 au 
 T_jup = 3.596 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456877.5 (2014-Aug-08.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051494820402622 2.6591e-08  
q 2.03185259917143 6.0225e-08 au
tp 2457051.591457597144
(2015-Jan-29.09145760)
8.7615e-05 TDB
node 74.97534154419702 3.4038e-05 deg
peri 39.24652204373049 4.3107e-05 deg
i 6.769092698500807 4.2514e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2014  
   data-arc span      24368 days (66.72 yr)  
   first obs. used      1952-11-16  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:36:14  

Additional Information
 Jupiter MOID = 2.5802 au 
 T_jup = 3.596 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.070987670638257E-16 -1.593029519131809E-15 -3.142566414661148E-13 4.917568179114143E-15 -1.028940447524852E-13 -8.142680112489361E-16
q -1.593029519131809E-15 3.627087395276126E-15 7.797705024605239E-13 -1.094242385229991E-14 2.521255132987676E-13 1.822451483385604E-15
tp -3.142566414661148E-13 7.797705024605239E-13 7.676394095210869E-9 -2.51397357882739E-11 2.334159901910294E-9 3.774893640003425E-13
node 4.917568179114143E-15 -1.094242385229991E-14 -2.51397357882739E-11 1.158563656835432E-9 -1.157535998462838E-9 -6.952843217332072E-11
peri -1.028940447524852E-13 2.521255132987676E-13 2.334159901910294E-9 -1.157535998462838E-9 1.85819960420385E-9 6.915406880723495E-11
i -8.142680112489361E-16 1.822451483385604E-15 3.774893640003425E-13 -6.952843217332072E-11 6.915406880723495E-11 1.807479734023231E-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 13.6   n/a MPO473806  
diameter diameter 6.887 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.128   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2999 Dante (1981 CY)          Discovered 1981-Feb-06 by Thomas, N. G. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 CY = 1978 GT4 = 1978 JT 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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