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2787 Tovarishch (1978 RC6)
Classification: Main-belt Asteroid          SPK-ID: 2002787
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05784611531642676 3.4018e-08  
a 3.02091283976337 1.6259e-08 au
q 2.846164767273544 1.04e-07 au
i 10.30810003195129 4.3596e-06 deg
node 30.16673643610801 2.1594e-05 deg
peri 65.20255688359801 4.491e-05 deg
M 193.3136224581878 3.9019e-05 deg
tp 2459488.480292315116
(2021-Sep-30.98029232)
0.00020868 TDB
period 1917.810621046424
5.25
1.5483e-05
4.239e-08
d
yr
n .1877140506206872 1.5155e-09 deg/d
Q 3.195660912253196 1.72e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2316  
   data-arc span      22656 days (62.03 yr)  
   first obs. used      1957-10-20  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43356  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:19:55  

Additional Information
 Earth MOID = 1.88097 au 
 Jupiter MOID = 1.94955 au 
 T_jup = 3.219 
[ 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 11.4   n/a MPO435724  
diameter diameter 19.707 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.125   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2787 Tovarishch (1978 RC6)          Discovered 1978-Sep-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 RC6 = 1957 UY = 1970 EB1 = 1976 JO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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