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3438 Inarradas (1974 SD5)
Classification: Main-belt Asteroid          SPK-ID: 2003438
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2025205515109857 4.7448e-08  
a 3.045598456349975 1.5958e-08 au
q 2.428802177288972 1.428e-07 au
i 15.30048865604688 5.0204e-06 deg
node 2.417085621405061 1.3767e-05 deg
peri 349.8149785537737 1.6609e-05 deg
M 206.6597362786914 1.1696e-05 deg
tp 2459827.415433156334
(2022-Sep-04.91543316)
6.7143e-05 TDB
period 1941.365879462175
5.32
1.5259e-05
4.178e-08
d
yr
n .1854364516284444 1.4575e-09 deg/d
Q 3.662394735410978 1.919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2306  
   data-arc span      28407 days (77.77 yr)  
   first obs. used      1942-09-07  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:57:33  

Additional Information
 Earth MOID = 1.42563 au 
 Jupiter MOID = 1.7864 au 
 T_jup = 3.154 
[ show covariance matrix ]

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 11.8   n/a MPO384783  
diameter diameter 25.252 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 24.82 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:
[Folberth, J.; Casimir, S.; Dou, Y.; Evans, D; et al. (2012) Minor Planet Bull. 39, 51-55.]
geometric albedo albedo 0.045   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3438 Inarradas (1974 SD5)          Discovered 1974-Sep-21 by Felix Aguilar Observatory at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1974 SD5 = 1942 RD = 1969 TC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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