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2031 BAM (1969 TG2)
Classification: Main-belt Asteroid          SPK-ID: 2002031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .172420574726989 1.8199e-08  
a 2.234415816858336 4.9581e-09 au
q 1.849156557536547 4.1367e-08 au
i 4.750124201931149 4.3607e-07 deg
node 169.208355569173 1.1283e-05 deg
peri 214.0012487829484 1.2064e-05 deg
M 117.6895659832872 5.7998e-06 deg
tp 2458801.677287606770
(2019-Nov-14.17728761)
1.9456e-05 TDB
period 1219.95671631546
3.34
4.0606e-06
1.112e-08
d
yr
n .2950924366294568 9.8221e-10 deg/d
Q 2.619675076180125 5.813e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2979  
   data-arc span      29724 days (81.38 yr)  
   first obs. used      1939-11-06  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45282  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:56:30  

Additional Information
 Earth MOID = .852965 au 
 Jupiter MOID = 2.83779 au 
 T_jup = 3.615 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457005.5 (2014-Dec-14.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .173246241233086 1.8228e-08  
q 1.846694365541796 4.1421e-08 au
tp 2457580.592314088423
(2016-Jul-11.09231409)
1.9249e-05 TDB
node 169.2864841740022 1.1274e-05 deg
peri 213.6776774125218 1.2043e-05 deg
i 4.752368262673317 4.3665e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2979  
   data-arc span      29724 days (81.38 yr)  
   first obs. used      1939-11-06  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45282  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:56:30  

Additional Information
 Jupiter MOID = 2.83779 au 
 T_jup = 3.615 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.322711228482616E-16 -7.514200571357622E-16 -1.607211340360134E-14 1.271992185504311E-14 7.492830518056909E-15 3.838064527869502E-16
q -7.514200571357622E-16 1.715686943249263E-15 2.902853300302332E-14 -2.891863051320659E-14 -1.994247611214487E-14 -8.514752276663744E-16
tp -1.607211340360134E-14 2.902853300302332E-14 3.705370466938802E-10 2.746014579263151E-12 8.669025933697953E-11 -2.477253577234911E-13
node 1.271992185504311E-14 -2.891863051320659E-14 2.746014579263151E-12 1.271005527005694E-10 -1.241168101588261E-10 2.323420903702995E-12
peri 7.492830518056909E-15 -1.994247611214487E-14 8.669025933697953E-11 -1.241168101588261E-10 1.450251365099698E-10 -2.376661620665083E-12
i 3.838064527869502E-16 -8.514752276663744E-16 -2.477253577234911E-13 2.323420903702995E-12 -2.376661620665083E-12 1.906627944747758E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.96   n/a MPCxxxxx  
rotation period rot_per 10.774 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

2031 BAM (1969 TG2)          Discovered 1969-Oct-08 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1969 TG2 = 1939 VB = 1959 TW = 1972 NQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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