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2951 Perepadin (1977 RB8)
Classification: Main-belt Asteroid          SPK-ID: 2002951
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1157173422565053 3.7781e-08  
a 3.136492433506574 1.6987e-08 au
q 2.773545865093554 1.1702e-07 au
i 14.74310330720873 4.4285e-06 deg
node 24.47416875718626 1.5549e-05 deg
peri 121.1013276330832 2.3685e-05 deg
M 172.0673669973907 1.8003e-05 deg
tp 2458230.747728631008
(2018-Apr-22.24772863)
0.00010127 TDB
period 2028.919392357129
5.55
1.6483e-05
4.513e-08
d
yr
n .1774343531616425 1.4415e-09 deg/d
Q 3.499439001919593 1.8953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3447  
   data-arc span      31831 days (87.15 yr)  
   first obs. used      1933-10-19  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .35572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 14:30:09  

Additional Information
 Earth MOID = 1.81562 au 
 Jupiter MOID = 1.57521 au 
 T_jup = 3.151 
[ 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 10.31   n/a E2021B10  
diameter diameter 46.653 km 0.544 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.781 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2006) Minor Planet Bull. 33, 39-41.]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Benishek, V. (2018) Minor Planet Bull. 45, 187-189.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.049   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2951 Perepadin (1977 RB8)          Discovered 1977-Sep-13 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1977 RB8 = 1930 FD = 1933 UW1 = 1944 UA = 1950 WE = 1952 DM2 = 1955 UG = 1958 HC = 1969 JF = 1971 SA4 = 1971 UU1 = 1980 JP 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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