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JPL Small-Body Database Browser
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2629 Rudra (1980 RB1)
Classification: Mars-crossing Asteroid          SPK-ID: 2002629
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2290365451275433 4.5105e-08  
a 1.740358756908775 4.2806e-09 au
q 1.341752999943923 7.6835e-08 au
i 23.44043455855923 6.9061e-06 deg
node 343.4465851282438 8.3887e-06 deg
peri 280.6906070509303 1.785e-05 deg
M 170.0108043160866 1.6157e-05 deg
tp 2458604.467686932943
(2019-Apr-30.96768693)		 3.7319e-05 TDB
period 838.6033656959193
2.30		 3.094e-06
8.471e-09		 d
yr
n .4292851838261491 1.5838e-09 deg/d
Q 2.138964513873626 5.261e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      24073 days (65.91 yr)  
   first obs. used      1954-01-05  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49026  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:17:55  

Additional Information
 Earth MOID = .485367 au 
 Jupiter MOID = 3.20248 au 
 T_jup = 4.023 
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[ 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 15.1   n/a MPO502178  
diameter diameter 4.747 km 1.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 123.171 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.066   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2629 Rudra (1980 RB1)          Discovered 1980-Sep-13 by Kowal, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1980 RB1 = 1959 EH 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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