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30724 Peterburgtrista (1978 SX2)
Classification: Main-belt Asteroid          SPK-ID: 2030724
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04161438227322003 4.0284e-08  
a 3.173695449832339 1.906e-08 au
q 3.041624074164237 1.2369e-07 au
i 21.3208201549802 4.2434e-06 deg
node 351.4344523828922 9.9135e-06 deg
peri 46.74100324862599 5.8148e-05 deg
M 124.5009188292042 5.5469e-05 deg
tp 2458486.305738279442
(2019-Jan-02.80573828)
0.00031882 TDB
period 2065.124792951252
5.65
1.8603e-05
5.093e-08
d
yr
n .1743236056381499 1.5704e-09 deg/d
Q 3.305766825500441 1.9853e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2325  
   data-arc span      15519 days (42.49 yr)  
   first obs. used      1978-09-26  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40059  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:16  

Additional Information
 Earth MOID = 2.06364 au 
 Jupiter MOID = 1.88826 au 
 T_jup = 3.093 
[ 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 12.04   n/a MPCxxxxx  
diameter diameter 20.694 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.004 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 0.086   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30724 Peterburgtrista           Discovered 1978 Sept. 26 by L. V. Zhuravleva at the Crimean Astrophysical Observatory.
This name is being proposed by the Russian Academy of Sciences on the occasion of the three-hundredth anniversary of St. Petersburg, one of the largest centers of culture and science in the world.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1978 SX2 = 2001 QS81 = A919 FA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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