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19546 (1999 JN34)
Classification: Main-belt Asteroid          SPK-ID: 2019546
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2657652964704216 3.958e-08  
a 2.408562208242936 1.0443e-08 au
q 1.768449958901799 9.8327e-08 au
i 8.762287111919733 4.0818e-06 deg
node 26.95931583036531 2.5491e-05 deg
peri 305.5363365987938 2.6467e-05 deg
M 258.3439548337053 1.0245e-05 deg
tp 2459782.036888086953
(2022-Jul-21.53688809)
4.0511e-05 TDB
period 1365.322440827372
3.74
8.8795e-06
2.431e-08
d
yr
n .2636739785671754 1.7148e-09 deg/d
Q 3.048674457584073 1.3218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1316  
   data-arc span      16004 days (43.82 yr)  
   first obs. used      1977-08-18  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49101  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:12:04  

Additional Information
 Earth MOID = .775358 au 
 Jupiter MOID = 2.38082 au 
 T_jup = 3.457 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457721.5 (2016-Nov-29.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2665301368787669 3.9627e-08  
q 1.766549044769469 9.8507e-08 au
tp 2457049.789336207525
(2015-Jan-27.28933621)
3.1036e-05 TDB
node 26.99354986134755 2.5494e-05 deg
peri 305.3653973481416 2.6455e-05 deg
i 8.764338904904633 4.0824e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1316  
   data-arc span      16004 days (43.82 yr)  
   first obs. used      1977-08-18  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49101  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:12:04  

Additional Information
 Jupiter MOID = 2.38082 au 
 T_jup = 3.457 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.570286166564157E-15 -3.893275340811814E-15 -1.935111863485004E-13 1.176405052423102E-14 -4.86757702360909E-14 -1.426857119198852E-15
q -3.893275340811814E-15 9.703675991103913E-15 5.416769689674876E-13 -2.918539243220773E-14 1.391110422421192E-13 3.797330032923465E-15
tp -1.935111863485004E-13 5.416769689674876E-13 9.632078356989066E-10 -1.611025345716157E-12 2.339456033599764E-10 1.394411875082509E-12
node 1.176405052423102E-14 -2.918539243220773E-14 -1.611025345716157E-12 6.499394459827564E-10 -6.425792064232284E-10 -1.533946811431565E-11
peri -4.86757702360909E-14 1.391110422421192E-13 2.339456033599764E-10 -6.425792064232284E-10 6.998837743102831E-10 1.553375253965031E-11
i -1.426857119198852E-15 3.797330032923465E-15 1.394411875082509E-12 -1.533946811431565E-11 1.553375253965031E-11 1.666568986250208E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.69   n/a MPCxxxxx  
diameter diameter 3.657 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.159   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19546 (1999 JN34)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JN34 = 1992 QJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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