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JPL Small-Body Database Browser
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163 Erigone
Classification: Main-belt Asteroid          SPK-ID: 2000163
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 120 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914099069263507 2.9429e-08  
a 2.367336248384003 4.6848e-09 au
q 1.914204637417445 6.9046e-08 au
i 4.814141074796297 3.5203e-06 deg
node 160.0618215424462 3.2056e-05 deg
peri 298.6514749598554 3.3115e-05 deg
M 190.2012555237661 9.1952e-06 deg
tp 2459228.009525601753
(2021-Jan-13.50952560)
3.4325e-05 TDB
period 1330.418725494462
3.64
3.9492e-06
1.081e-08
d
yr
n .2705915010826406 8.0322e-10 deg/d
Q 2.820467859350561 5.5815e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3005  
   data-arc span      46433 days (127.13 yr)  
   first obs. used      1892-09-13  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43778  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:50:12  

Additional Information
 Earth MOID = .936616 au 
 Jupiter MOID = 2.3547 au 
 T_jup = 3.517 
[ 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 9.47   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
magnitude slope G -0.04   n/a PDS3 (MPC 17257) Fit
diameter diameter 81.579 km 3.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.136 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Pilcher, F.; Briggs, J.; Martinez, L.; Odden, C.; Aggarwal, A. (2014) Minor Planet Bull. 41, 187.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
geometric albedo albedo 0.033   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
B-V BV 0.717   0.023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.23, mean=11.78, max.=18.33) deg.
U-B UB 0.341   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.23, mean=11.78, max.=18.33) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

163 Erigone          Discovered 1876-Apr-26 by Perrotin, J. at Toulouse
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1958-Mar-12 18:16 < 00:01 Amphi 0.046837060069188 0.046836739064526 0.0468373810758321 4.20365197968357 4.20365195048533 2436275.261431297 0.246964402422241 67.1963301331089 15.5600322403347 -86.7324099008775 449396.977154869 T 120 CATAB v2.0f-lin.ifort 2019-Nov-07 01:50:28 2019-Nov-07 01:50

Alternate Designations
 1957 OT = A892 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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