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JPL Small-Body Database Browser
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2601 Bologna (1980 XA)
Classification: Main-belt Asteroid          SPK-ID: 2002601
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06471142760007087 3.7892e-08  
a 3.128367381928645 1.7758e-08 au
q 2.925926262586546 1.2068e-07 au
i 9.587028968139034 4.0975e-06 deg
node 288.1592168824084 2.4858e-05 deg
peri 193.2839536185371 4.0085e-05 deg
M 356.3355889676232 3.1219e-05 deg
tp 2459021.072010232547
(2020-Jun-20.57201023)
0.00017528 TDB
period 2021.040657907083
5.53
1.7209e-05
4.712e-08
d
yr
n .1781260553030155 1.5167e-09 deg/d
Q 3.330808501270744 1.8907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2295  
   data-arc span      20081 days (54.98 yr)  
   first obs. used      1965-01-11  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42011  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 18:39:11  

Additional Information
 Earth MOID = 1.9429 au 
 Jupiter MOID = 1.77675 au 
 T_jup = 3.189 
[ 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 11.4   n/a MPO324330  
diameter diameter 12.172 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.360   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2601 Bologna (1980 XA)          Discovered 1980-Dec-08 by Osservatorio San Vittore at Bologna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 XA = 1965 AC1 = 1971 DD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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