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2175 Andrea Doria (1977 TY)
Classification: Main-belt Asteroid          SPK-ID: 2002175
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2065276250769896 8.0371e-09  
a 2.216022684924537 4.4695e-09 au
q 1.758352782690338 1.8544e-08 au
i 3.703540285382901 8.8842e-07 deg
node 222.0600267452452 5.0101e-06 deg
peri 143.6330431830459 6.7184e-06 deg
M 101.7071375836974 5.0865e-06 deg
tp 2459056.085021804438
(2020-Jul-25.58502180)
1.6781e-05 TDB
period 1204.924207502676
3.30
3.6453e-06
9.98e-09
d
yr
n .2987739791087238 9.0389e-10 deg/d
Q 2.673692587158735 5.3926e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2731  
   data-arc span      25867 days (70.82 yr)  
   first obs. used      1950-06-15  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42971  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:24:44  

Additional Information
 Earth MOID = .757778 au 
 Jupiter MOID = 2.79796 au 
 T_jup = 3.622 
[ 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 13.90   n/a MPCxxxxx  
diameter diameter 3.922 km 0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.880 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Megna, R. (2011) http://www.macastronomy.com/MacAstronomy.com/Asteroids.html]
geometric albedo albedo 0.417   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2175 Andrea Doria (1977 TY)          Discovered 1977-Oct-12 by Wild, P. at Zimmerwald
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 TY = 1964 VY1 = 1967 RS = 1967 TE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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