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74869 (1999 TN94)
Classification: Main-belt Asteroid          SPK-ID: 2074869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03920549974716434 3.5795e-08  
a 2.54880894999412 1.3429e-08 au
q 2.448881621349556 9.1964e-08 au
i 5.64240886875926 3.6104e-06 deg
node 56.83149004412674 4.4534e-05 deg
peri 49.79738342689841 7.2034e-05 deg
M 201.3395313136791 5.8839e-05 deg
tp 2459255.544167671761
(2021-Feb-10.04416767)
0.00024496 TDB
period 1486.292725052093
4.07
1.1746e-05
3.216e-08
d
yr
n .2422133903584722 1.9142e-09 deg/d
Q 2.648736278638685 1.3956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1012  
   data-arc span      8712 days (23.85 yr)  
   first obs. used      1996-01-21  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53837  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:49:54  

Additional Information
 Earth MOID = 1.47021 au 
 Jupiter MOID = 2.39555 au 
 T_jup = 3.433 
[ 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 14.8   n/a MPO299447  
diameter diameter 3.097 km 0.493 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.266   0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74869 (1999 TN94)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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