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1070 Tunica (1926 RB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001070
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07978870593350969 3.7217e-08  
a 3.232624015319046 1.479e-08 au
q 2.974697128367153 1.209e-07 au
i 16.9606594016032 4.1691e-06 deg
node 165.2940144506087 1.295e-05 deg
peri 190.4111593435863 2.762e-05 deg
M 68.63358354639183 2.3835e-05 deg
tp 2458595.770003001627
(2019-Apr-22.27000300)
0.00014086 TDB
period 2122.908223507357
5.81
1.457e-05
3.989e-08
d
yr
n .1695786921043751 1.1638e-09 deg/d
Q 3.490550902270938 1.597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2685  
   data-arc span      42506 days (116.38 yr)  
   first obs. used      1903-09-20  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:44:48  

Additional Information
 Earth MOID = 1.97042 au 
 Jupiter MOID = 1.94703 au 
 T_jup = 3.113 
[ 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 10.8   n/a MPO502163  
diameter diameter 39.131 km 0.423 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.8 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.061   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1070 Tunica (1926 RB)          Discovered 1926-Sep-01 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
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
2004-Nov-21 14:29 < 00:01 Jupiter 1.99708410279607 1.99708369475196 1.9970845108403 4.81919357356464 4.73036652547274 2453331.103547692 0.262204419989589 48.5530389072883 17.6869558561145 -79.304762087325 4558762.09902218 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:04 2020-Feb-22 15:45
2016-Apr-25 06:44 < 00:01 Jupiter 1.945251937298 1.94525156591312 1.94525230868289 4.85827690503176 4.76780798480695 2457503.780717315 0.219669336540396 48.2158976655576 17.255870099803 -85.0904576108829 4511078.94250281 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:04 2020-Feb-22 15:45
2027-Sep-28 13:04 < 00:01 Jupiter 1.93655585398117 1.93655547882571 1.93655622913662 4.81718696134507 4.72551776214135 2461677.044627605 0.375447997192399 59.9266568330854 17.760626182641 87.8139761626775 4504547.25603964 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:04 2020-Feb-22 15:45
2039-Feb-22 12:35 < 00:01 Jupiter 1.97528357132479 1.97528311897352 1.97528402367628 4.68499535020862 4.59255487166753 2465842.023994961 0.621201162649059 73.686110795434 19.2921917726842 81.3843380782446 4485906.62381468 T 37 CATAB v2.0f-lin.ifort 2020-Feb-22 15:45:04 2020-Feb-22 15:45

Alternate Designations
 1926 RB = A903 SA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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