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74584 (1999 NH50)
Classification: Main-belt Asteroid          SPK-ID: 2074584
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791978695844441 3.8927e-08  
a 2.241992226827515 1.1331e-08 au
q 1.84023199615514 8.699e-08 au
i 3.141186223744526 4.3956e-06 deg
node 256.417361418317 9.8617e-05 deg
peri 32.86890903932573 9.9971e-05 deg
M 88.20456600688352 2.0514e-05 deg
tp 2458700.073562880130
(2019-Aug-04.57356288)
6.843e-05 TDB
period 1226.166878421157
3.36
9.2953e-06
2.545e-08
d
yr
n .2935978832371864 2.2257e-09 deg/d
Q 2.643752457499889 1.3361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      463  
   data-arc span      8158 days (22.34 yr)  
   first obs. used      1996-10-04  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58043  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:13:58  

Additional Information
 Earth MOID = .824871 au 
 Jupiter MOID = 2.52127 au 
 T_jup = 3.610 
[ 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 16.4   n/a MPO436304  

74584 (1999 NH50)          Discovered 1999-Jul-13 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
1930-Oct-31 14:05 00:01 Eunom 0.0483313103118171 0.0483198076435541 0.0483428132121055 5.35042101282821 5.35042095854353 2426281.086712954 1.38454959233316 597.26423338623 61.6185678873274 16.3989663942478 35082.1066341952 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 09:14:00 2019-Jul-13 09:14
2048-Jan-10 02:23 < 00:01 David 0.0385221645427297 0.0385187110474154 0.0385256183741049 6.80162080426377 6.80162074660572 2469085.599402631 0.862631814365626 249.799765546021 23.0332305056567 -46.6895234626021 182679.504737605 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 09:14:00 2019-Jul-13 09:14
2121-Nov-13 01:40 00:02 David 0.0397333479661234 0.0397247978722306 0.0397419018816936 6.86580361845184 6.86580356307394 2496055.569181337 2.18406663924512 748.55152594602 24.0622906691455 -55.324654217505 203135.59857038 T 18 CATAB v2.0e-lin.ifort 2019-Jul-13 09:14:00 2019-Jul-13 09:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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