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3749 Balam (1982 BG1)
Classification: Main-belt Asteroid          SPK-ID: 2003749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 64 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1089878757868052 3.1892e-08  
a 2.237802375869392 6.7145e-09 au
q 1.993909048492721 7.1628e-08 au
i 5.382059820318754 3.6066e-06 deg
node 295.6883578880097 3.3585e-05 deg
peri 174.1727669182647 3.8025e-05 deg
M 188.3503046049966 1.9605e-05 deg
tp 2459583.504033036685
(2022-Jan-04.00403304)
6.8212e-05 TDB
period 1222.731280764721
3.35
5.5032e-06
1.507e-08
d
yr
n .2944228267185973 1.3251e-09 deg/d
Q 2.481695703246063 7.4463e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2835  
   data-arc span      24069 days (65.90 yr)  
   first obs. used      1954-12-06  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:57:36  

Additional Information
 Earth MOID = 1.01067 au 
 Jupiter MOID = 2.60947 au 
 T_jup = 3.623 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457399.5 (2016-Jan-12.0) TDB
Reference: JPL 64 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109664674765156 3.1843e-08  
q 1.991559986291491 7.1641e-08 au
tp 2457138.286337305639
(2015-Apr-25.78633731)
6.1409e-05 TDB
node 295.7245976330058 3.3612e-05 deg
peri 173.8990181300198 3.8002e-05 deg
i 5.380577499122005 3.6053e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2835  
   data-arc span      24069 days (65.90 yr)  
   first obs. used      1954-12-06  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41388  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:57:36  

Additional Information
 Jupiter MOID = 2.60947 au 
 T_jup = 3.623 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.013998073436188E-15 -2.273344461009036E-15 3.0856929625058E-13 -2.769337730111967E-15 1.109657160629644E-13 4.961821642477309E-16
q -2.273344461009036E-15 5.132382981445091E-15 -4.976097645921308E-13 5.960118169113024E-15 -1.929229208199263E-13 -9.654363920032145E-16
tp 3.0856929625058E-13 -4.976097645921308E-13 3.771080884915398E-9 -4.563772024914508E-12 1.096753585288506E-9 1.560534939092181E-12
node -2.769337730111967E-15 5.960118169113024E-15 -4.563772024914508E-12 1.129743412422953E-9 -1.125711998396717E-9 2.770162007360926E-11
peri 1.109657160629644E-13 -1.929229208199263E-13 1.096753585288506E-9 -1.125711998396717E-9 1.444127624649348E-9 -2.713309075861913E-11
i 4.961821642477309E-16 -9.654363920032145E-16 1.560534939092181E-12 2.770162007360926E-11 -2.713309075861913E-11 1.299783542500901E-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 13.4   n/a MPO473817  
diameter diameter 4.663 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.80483 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Marchis, F.; Pollock, J.; Pravec, P.; Maek, M.; et al. (2008) CBET 1297.]
[Polishook, D.; Brosch, N.; Prialnik, D. (2011) Icarus 212, 167-174.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2012) http://www.asu.cas.cz/~ppravec/neo.htm]
[Polishook, D. (2014) Icarus 241, 79-96.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
[Troianskyi, V.; Kashuba, V.; Krugly, Yu. (2019) Minor Planet Bull. 46, 109-111.]
geometric albedo albedo 0.355   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3749 Balam (1982 BG1)          Discovered 1982-Jan-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 BG1 = 1954 XM = 1962 ED = 1974 YO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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