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70 Panopaea (A861 JA)
Classification: Main-belt Asteroid          SPK-ID: 2000070
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1805059631509 3.9929e-08  
a 2.61638204781015 7.8269e-09 au
q 2.144109486299455 1.0384e-07 au
i 11.59282214529865 3.3675e-06 deg
node 47.68987676962223 2.3024e-05 deg
peri 255.4790576150813 2.5526e-05 deg
M 163.5036713872012 1.368e-05 deg
tp 2458298.438470424923
(2018-Jun-28.93847043)
5.8095e-05 TDB
period 1545.788840719645
4.23
6.9364e-06
1.899e-08
d
yr
n .2328908001641423 1.045e-09 deg/d
Q 3.088654609320845 9.2398e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3340  
   data-arc span      56250 days (154.00 yr)  
   first obs. used      1866-09-19  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:23:27  

Additional Information
 Earth MOID = 1.16399 au 
 Jupiter MOID = 2.22108 au 
 T_jup = 3.355 
[ 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 8.1   n/a MPO502153 IRAS observations used: 12
magnitude slope G 0.14   n/a PDS3 (MPC 17257) Fit
diameter diameter 127.911 km 0.745 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.8052 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Schroll, A.; Schober, H.J. (1983) Astron. Astrophys. Suppl. Ser. 53, 77-79.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Bartczak, P.; et al. (2016) Proc. Polish Ast. Soc. 123, 51-57.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.038   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.740   0.008 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=10.92, mean=15.54, max.=21.63) deg.
U-B UB 0.390   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=10.92, mean=15.54, max.=21.63) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
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)

70 Panopaea (A861 JA)          Discovered 1861-May-05 by Goldschmidt, H. at Paris
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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