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3603 Gajdusek (1981 RM)
Classification: Main-belt Asteroid          SPK-ID: 2003603
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1253066869294409 3.0819e-08  
a 2.569796299800025 1.101e-08 au
q 2.247783639388548 7.9072e-08 au
i 5.228810081626619 3.4697e-06 deg
node 277.8926833620038 4.8553e-05 deg
peri 347.1192122463304 5.1923e-05 deg
M 210.1529960230872 1.987e-05 deg
tp 2459626.813884362242
(2022-Feb-16.31388436)
8.3946e-05 TDB
period 1504.688064401649
4.12
9.6698e-06
2.647e-08
d
yr
n .239252246706135 1.5375e-09 deg/d
Q 2.891808960211503 1.2389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2335  
   data-arc span      23778 days (65.10 yr)  
   first obs. used      1955-03-24  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4499  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:56:23  

Additional Information
 Earth MOID = 1.23227 au 
 Jupiter MOID = 2.18945 au 
 T_jup = 3.413 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO350830  
diameter diameter 7.612 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.770 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 0.211   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3603 Gajdusek (1981 RM)          Discovered 1981-Sep-05 by Brozek, L. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 RM = 1976 JP = 1985 RC2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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