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JPL Small-Body Database Browser
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3657 Ermolova (1978 ST6)
Classification: Main-belt Asteroid          SPK-ID: 2003657
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1322197679423657 3.7476e-08  
a 2.313175230951753 7.8043e-09 au
q 2.007327738705284 8.7142e-08 au
i 5.789978993209385 3.3302e-06 deg
node 237.27118398 3.9197e-05 deg
peri 102.0217255522694 4.0969e-05 deg
M 330.1911723412693 1.4052e-05 deg
tp 2459106.902938574992
(2020-Sep-14.40293858)
5.0412e-05 TDB
period 1285.023964227524
3.52
6.5032e-06
1.78e-08
d
yr
n .2801504174409771 1.4178e-09 deg/d
Q 2.619022723198222 8.8362e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2418  
   data-arc span      34537 days (94.56 yr)  
   first obs. used      1925-10-06  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43218  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:57:02  

Additional Information
 Earth MOID = 1.00844 au 
 Jupiter MOID = 2.74906 au 
 T_jup = 3.564 
[ 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 12.7   n/a MPO272654  
diameter diameter 6.655 km 0.661 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.6064 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm]
[Hasegawa, S.; Miyaska, S.; Mito, H.; Sarugaku, Y.; et al. (2014) Pub. Astron. Soc. Japan 66, 54.]
[Husarik, M. (2014) ACM 2014 Abstracts, 246.]
[Klinglesmith III, D.A.; Hanowell, J.; Turk, J. (2014) Minor Planet Bull. 41, 15-16.]
[Husarik, M. (2016) Earth, Moon, and Planets 119, 35-45.]
geometric albedo albedo 0.543   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3657 Ermolova (1978 ST6)          Discovered 1978-Sep-26 by Zhuravleva, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 ST6 = 1925 TE = 1984 GD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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