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5420 Jancis (1982 JR1)
Classification: Main-belt Asteroid          SPK-ID: 2005420
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2350065514195235 2.4412e-08  
a 2.679463741643203 1.1383e-08 au
q 2.049772208065981 6.7485e-08 au
i 8.677214437099833 1.0712e-06 deg
node 85.11058752983419 5.9542e-06 deg
peri 259.3842674004732 7.5483e-06 deg
M 244.1595845538002 6.9379e-06 deg
tp 2459911.999038228654
(2022-Nov-28.49903823)
3.2473e-05 TDB
period 1602.028558405032
4.39
1.0208e-05
2.795e-08
d
yr
n .224715095190571 1.4319e-09 deg/d
Q 3.309155275220424 1.4058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2073  
   data-arc span      14278 days (39.09 yr)  
   first obs. used      1982-05-15  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 23:53:15  

Additional Information
 Earth MOID = 1.06272 au 
 Jupiter MOID = 2.16929 au 
 T_jup = 3.321 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO492815  
diameter diameter 12.35 km 0.7 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 26.2 h n/a LCDB (Rev. 2020-October); 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:
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.0731   0.009 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6

5420 Jancis           Discovered 1982 May 15 at Palomar.
Master of Wine and doyenne of British wine writers and broadcasters, Jancis Robinson (b. 1950) has a worldwide reputation. Editor of the Oxford Companion to Wine, weekly contributor to the Financial Times and creator of a renowned webpage, she has enormously influenced academic and public understanding of good wine.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

Alternate Designations
 1982 JR1 = 1983 VG1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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