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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06471142785007025 3.756e-08  
a 3.128367381987954 1.7459e-08 au
q 2.925926261859927 1.2002e-07 au
i 9.587028901070436 4.0831e-06 deg
node 288.1592174885914 2.4287e-05 deg
peri 193.2839530519441 3.9425e-05 deg
M 356.3355888971574 3.0627e-05 deg
tp 2459021.072010628727
(2020-Jun-20.57201063)
0.00017195 TDB
period 2021.040657964557
5.53
1.6919e-05
4.632e-08
d
yr
n .1781260552979501 1.4912e-09 deg/d
Q 3.33080850211598 1.8589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2387  
   data-arc span      20190 days (55.28 yr)  
   first obs. used      1965-01-11  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:42:29  

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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