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19556 (1999 JV77)
Classification: Main-belt Asteroid          SPK-ID: 2019556
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1824994022383018 1.7095e-08  
a 2.40531208351214 9.2465e-09 au
q 1.96634406607461 4.0315e-08 au
i 12.30599401827035 5.5002e-07 deg
node 95.12376557886138 1.2907e-06 deg
peri 218.0511729347979 5.1493e-06 deg
M 227.6181957011174 5.3394e-06 deg
tp 2459701.550352121877
(2022-May-02.05035212)
2.2213e-05 TDB
period 1362.55981491709
3.73
7.8569e-06
2.151e-08
d
yr
n .2642085845030632 1.5235e-09 deg/d
Q 2.84428010094967 1.0934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2942  
   data-arc span      25968 days (71.10 yr)  
   first obs. used      1950-02-17  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39988  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:55:56  

Additional Information
 Earth MOID = .964116 au 
 Jupiter MOID = 2.43215 au 
 T_jup = 3.470 
[ 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 13.99   n/a MPCxxxxx  
diameter diameter 5.727 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.36007 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.133   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19556 (1999 JV77)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JV77 = 1998 DH36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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