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30778 Doblin (1987 SX10)
Classification: Main-belt Asteroid          SPK-ID: 2030778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0976729028020006 4.1106e-08  
a 2.715303509500201 1.2722e-08 au
q 2.450091933738857 1.1191e-07 au
i 8.205200791725373 4.7008e-06 deg
node 40.86938528305649 2.7036e-05 deg
peri 11.59244447318862 3.6128e-05 deg
M 114.4681995499064 2.2962e-05 deg
tp 2458680.853089673666
(2019-Jul-16.35308967)
0.00010361 TDB
period 1634.278240184247
4.47
1.1486e-05
3.145e-08
d
yr
n .2202807276926198 1.5481e-09 deg/d
Q 2.980515085261546 1.3965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1565  
   data-arc span      12234 days (33.49 yr)  
   first obs. used      1987-09-24  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54703  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:29  

Additional Information
 Earth MOID = 1.46042 au 
 Jupiter MOID = 2.3735 au 
 T_jup = 3.339 
[ 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 14.26   n/a E2021B10  
diameter diameter 7.252 km 2.954 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.084   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

30778 Döblin           Discovered 1987 Sept. 29 by F. Borngen at Tautenburg.
German narrative writer Alfred Döblin (1878-1957) originated from a Jewish merchant family. A doctor by profession, he lived in exile in France and the U.S. during 1933-1945. From his extensive literary work best known are his novels Berlin Alexanderplatz (1929) and Babylonische Wanderung (1934).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1987 SX10 = 1999 JT39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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