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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0394443270653498 3.5792e-08  
a 2.548770257608052 1.331e-08 au
q 2.448235729952524 9.1989e-08 au
i 5.642212239405048 3.6102e-06 deg
node 56.83050555964 4.4538e-05 deg
peri 49.63512340139037 7.1773e-05 deg
M 298.4182862432688 5.8807e-05 deg
tp 2459254.739913830343
(2021-Feb-09.23991383)
0.00024359 TDB
period 1486.258881012697
4.07
1.1642e-05
3.187e-08
d
yr
n .2422189058710321 1.8973e-09 deg/d
Q 2.649304785263579 1.3835e-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 = 1.4694 au 
 Jupiter MOID = 2.39417 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

[ 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
2125-Jan-13 19:23 00:01 Amphi 0.00639952513071074 0.0063926635963806 0.0064064509465415 2.10874035924945 2.10873993325668 2497213.307329475 1.05753353701235 1070.86160971817 33.5717834746761 71.3967858751938 26975.9023259219 T 22 CATAB v2.0f-lin.ifort 2019-Dec-04 06:50:09 2019-Dec-04 06:50
2167-Oct-06 11:01 < 00:01 Amphi 0.0125032153062636 0.0124790670877182 0.0125273973258504 2.20989820611735 2.20989799806191 2512818.958918667 0.950764473642395 1579.5312664955 31.2280357807161 40.4064782683174 38768.1404369541 T 22 CATAB v2.0f-lin.ifort 2019-Dec-04 06:50:09 2019-Dec-04 06:50
2171-Nov-05 07:27 < 00:01 Amphi 0.0392103602523594 0.039178523610379 0.0392421979159153 2.38669199049078 2.38669192906145 2514309.810625409 0.865780730454572 1616.9427523566 33.6407578652073 -11.2932381160653 34278.9925040523 T 22 CATAB v2.0f-lin.ifort 2019-Dec-04 06:50:09 2019-Dec-04 06:50
2195-Apr-26 00:47 00:11 Psych 0.0398008874589363 0.0397673566029764 0.0398344207548938 2.83508994021484 2.83508983299045 2522882.532794701 11.3290579573741 1740.33875336791 32.1611335105561 -16.4108437113841 52310.6532135178 T 22 CATAB v2.0f-lin.ifort 2019-Dec-04 06:50:09 2019-Dec-04 06:50
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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