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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06465475824094243 3.6696e-08  
a 3.128075305770448 1.6772e-08 au
q 2.925830353116397 1.1634e-07 au
i 9.586684852204012 4.0127e-06 deg
node 288.1579674066224 2.3972e-05 deg
peri 193.1517916433142 3.9133e-05 deg
M 32.0822825287561 3.0303e-05 deg
tp 2459020.415230284460
(2020-Jun-19.91523028)
0.00017002 TDB
period 2020.757626564915
5.53
1.6252e-05
4.45e-08
d
yr
n .1781510039934694 1.4328e-09 deg/d
Q 3.330320258424499 1.7857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2590  
   data-arc span      20463 days (56.02 yr)  
   first obs. used      1965-01-11  
   last obs. used      2021-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40532  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:04:18  

Additional Information
 Earth MOID = 1.9427 au 
 Jupiter MOID = 1.77696 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 11.46   n/a E2021B10  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1963-Feb-20 10:01 00:01 Jupiter 1.88736152498929 1.88736098669404 1.8873620632854 2.98145381544422 2.82692300962222 2438080.917314524 1.42188266076511 149.664676360781 20.6196279464734 84.053740427876 3360078.83098358 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:24 2021-Feb-24 01:04
1973-Jun-06 21:35 < 00:01 Jupiter 1.83312800591087 1.83312763200751 1.83312837981433 3.83018801780196 3.70758846012464 2441840.399208197 0.99944996283066 88.7270845137902 15.1907940283436 85.2983396650914 3672298.56334101 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:24 2021-Feb-24 01:04
2046-Apr-16 07:45 < 00:01 Jupiter 1.89887801439365 1.89887755449122 1.89887847429597 2.90463659775762 2.7467770746174 2468451.822836269 0.899844624926141 93.6340828582002 18.8561096087424 88.0725973927239 3383149.96562431 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:24 2021-Feb-24 01:04
2056-Jul-25 10:42 00:01 Jupiter 1.83610136647367 1.83610095320645 1.8361017797411 3.78519909731499 3.66129767516462 2472204.945729360 1.05559262808029 91.5463168787429 16.0544486227183 84.3916496956582 3344492.46734694 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:24 2021-Feb-24 01:04
2129-Jun-12 22:28 00:03 Jupiter 1.90006514466008 1.90006445204198 1.90006583728305 2.8214886477849 2.65880163050772 2498824.435783354 3.21188614548051 230.170655600684 20.1438206879072 83.877570588837 3284951.01254301 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:24 2021-Feb-24 01:04
2139-Sep-15 02:03 00:03 Jupiter 1.82840549352388 1.82840497057556 1.82840601647314 3.70362322464444 3.57635429399611 2502570.585216407 3.10961734706935 119.545781408967 16.3831011769774 83.9863703403564 2241268.60964081 T 42 CATAB v2.0f-lin.ifort 2021-Feb-24 01:04:24 2021-Feb-24 01:04

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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