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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1721655992688182 3.3739e-08  
a 2.234210539734877 5.431e-09 au
q 1.849556343268712 7.5976e-08 au
i 4.749740636518246 3.6504e-06 deg
node 169.2181288242535 3.8388e-05 deg
peri 213.9521124585362 3.9583e-05 deg
M 300.6651330165591 8.9612e-06 deg
tp 2458801.544429176355
(2019-Nov-14.04442918)
3.0291e-05 TDB
period 1219.788602942119
3.34
4.4477e-06
1.218e-08
d
yr
n .2951331067790626 1.0761e-09 deg/d
Q 2.618864736201042 6.366e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2418  
   data-arc span      29242 days (80.06 yr)  
   first obs. used      1939-11-06  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48785  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:30:07  

Additional Information
 Earth MOID = .853919 au 
 Jupiter MOID = 2.83483 au 
 T_jup = 3.615 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456556.5 (2013-Sep-21.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728690693715128 3.3872e-08  
q 1.848417557030258 7.6398e-08 au
tp 2456361.537741512663
(2013-Mar-10.03774151)
3.192e-05 TDB
node 169.3052746568562 3.8372e-05 deg
peri 213.831169118775 3.9549e-05 deg
i 4.750154065981703 3.6521e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2418  
   data-arc span      29242 days (80.06 yr)  
   first obs. used      1939-11-06  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48785  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:30:07  

Additional Information
 Jupiter MOID = 2.83483 au 
 T_jup = 3.615 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.147336913798267E-15 -2.583342305593973E-15 -1.010715467259521E-13 1.079970852543269E-14 -3.947847028286832E-14 1.016885414481233E-16
q -2.583342305593973E-15 5.836579974093868E-15 1.741322721901348E-13 -2.486581058660057E-14 7.482069145481212E-14 -2.170140024601732E-16
tp -1.010715467259521E-13 1.741322721901348E-13 1.018911983017638E-9 -9.615632953275697E-12 3.143845370224291E-10 2.751578226919203E-13
node 1.079970852543269E-14 -2.486581058660057E-14 -9.615632953275697E-12 1.472405916100424E-9 -1.469542500818476E-9 1.982782147443563E-11
peri -3.947847028286832E-14 7.482069145481212E-14 3.143845370224291E-10 -1.469542500818476E-9 1.564138636780689E-9 -1.970474151551503E-11
i 1.016885414481233E-16 -2.170140024601732E-16 2.751578226919203E-13 1.982782147443563E-11 -1.970474151551503E-11 1.333754522630535E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO298972  
rotation period rot_per 10.774 h n/a LCDB (Rev. 2019-January); 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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