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3461 Mandelshtam (1977 SA1)
Classification: Main-belt Asteroid          SPK-ID: 2003461
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357153215510798 2.3136e-08  
a 2.378867372240685 6.9228e-09 au
q 2.056018621889668 5.4856e-08 au
i 3.244194164206386 8.5131e-07 deg
node 57.88288412157164 2.4339e-05 deg
peri 343.6345506277415 2.2815e-05 deg
M 259.5801205029078 7.3742e-06 deg
tp 2459574.327259153666
(2021-Dec-25.82725915)
2.842e-05 TDB
period 1340.151113198823
3.67
5.85e-06
1.602e-08
d
yr
n .2686264231357549 1.1726e-09 deg/d
Q 2.701716122591701 7.8624e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2691  
   data-arc span      19194 days (52.55 yr)  
   first obs. used      1968-02-27  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42902  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:09:10  

Additional Information
 Earth MOID = 1.06366 au 
 Jupiter MOID = 2.68104 au 
 T_jup = 3.525 
[ 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 13.4   n/a MPO473813  
diameter diameter 7.615 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.848 h n/a LCDB (Rev. 2020-October); 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 0.160   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3461 Mandelshtam (1977 SA1)          Discovered 1977-Sep-18 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1977 SA1 = 1968 DQ = 1981 YU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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