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4029 Bridges (1982 KC1)
Classification: Main-belt Asteroid          SPK-ID: 2004029
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1314469716654831 5.3071e-08  
a 2.525349734368355 7.8239e-09 au
q 2.193400159389403 1.3408e-07 au
i 5.437453170289459 5.294e-06 deg
node 214.776919886302 3.2892e-05 deg
peri 16.39741432836606 3.7746e-05 deg
M 173.7069714445764 1.7308e-05 deg
tp 2458293.213331307521
(2018-Jun-23.71333131)
6.9744e-05 TDB
period 1465.820275443197
4.01
6.812e-06
1.865e-08
d
yr
n .2455962753627162 1.1413e-09 deg/d
Q 2.857299309347308 8.8524e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2731  
   data-arc span      16898 days (46.26 yr)  
   first obs. used      1974-04-24  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:10:38  

Additional Information
 Earth MOID = 1.18363 au 
 Jupiter MOID = 2.13067 au 
 T_jup = 3.435 
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Orbital Elements at Epoch 2456556.5 (2013-Sep-21.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1308469344313954 5.3005e-08  
q 2.194876801204621 1.3366e-07 au
tp 2456828.237733015884
(2014-Jun-19.73773302)
6.9751e-05 TDB
node 214.7986136409513 3.2886e-05 deg
peri 16.63478068621642 3.7861e-05 deg
i 5.437088982244157 5.2958e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2731  
   data-arc span      16898 days (46.26 yr)  
   first obs. used      1974-04-24  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:10:38  

Additional Information
 Jupiter MOID = 2.13067 au 
 T_jup = 3.435 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.809516495192111E-15 -7.075171334457515E-15 -2.603446445390644E-12 9.772681534670624E-15 -7.544770008800038E-13 1.643523464089325E-15
q -7.075171334457515E-15 1.786413437518868E-14 6.607102697257074E-12 -2.680804698836455E-14 1.910220680272819E-12 -3.847322565006694E-15
tp -2.603446445390644E-12 6.607102697257074E-12 4.865156826815006E-9 -1.62428857738893E-11 1.31201002933145E-9 -1.614826840906806E-12
node 9.772681534670624E-15 -2.680804698836455E-14 -1.62428857738893E-11 1.081504829542679E-9 -1.080731135871694E-9 -7.931602488637577E-11
peri -7.544770008800038E-13 1.910220680272819E-12 1.31201002933145E-9 -1.080731135871694E-9 1.433425475532666E-9 7.852227024927677E-11
i 1.643523464089325E-15 -3.847322565006694E-15 -1.614826840906806E-12 -7.931602488637577E-11 7.852227024927677E-11 2.804504607233409E-11

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 12.8   n/a MPO259366  
diameter diameter 7.433 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.5746 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Higgins, D.; Pravec, P.; Kusnirak, P.; Cooney, W.; Gross, J.; et al. (2006) CBET 507.]
[Higgins, D.; Oey, J.; Pravec, P. (2011) Minor Planet Bull. 38, 46-49.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Scheirich, P.; Vokrouhlicky, D.; Harris, A.W.; et al. (2012) Icarus 218, 125-143. See also supplemental on-line material.]
geometric albedo albedo 0.265   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4029 Bridges (1982 KC1)          Discovered 1982-May-24 by Shoemaker, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1982 KC1 = 1974 HS2 = 1975 TQ = 1978 AF = 1978 JJ2 = 1982 OX = 1986 JF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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