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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1791978532095511 3.8657e-08  
a 2.241992215646861 1.031e-08 au
q 1.840232023690418 8.6747e-08 au
i 3.141182543288853 4.3779e-06 deg
node 256.4174086891094 9.6129e-05 deg
peri 32.86885225283802 9.7308e-05 deg
M 88.20458739854361 1.8053e-05 deg
tp 2458700.073492267035
(2019-Aug-04.57349227)
6.0362e-05 TDB
period 1226.166869248947
3.36
8.4578e-06
2.316e-08
d
yr
n .2935978854334138 2.0252e-09 deg/d
Q 2.643752407603303 1.2157e-08 au
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      8340 days (22.83 yr)  
   first obs. used      1996-10-04  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:06  

Additional Information
 Earth MOID = .824871 au 
 Jupiter MOID = 2.52127 au 
 T_jup = 3.610 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456645.5 (2013-Dec-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1794543630972379 3.8641e-08  
q 1.839710031590791 8.6734e-08 au
tp 2456246.058185589354
(2012-Nov-14.55818559)
5.3117e-05 TDB
node 256.5278820792343 9.5963e-05 deg
peri 32.51195433306561 9.7144e-05 deg
i 3.144070463405245 4.3817e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      8340 days (22.83 yr)  
   first obs. used      1996-10-04  
   last obs. used      2019-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:06  

Additional Information
 Jupiter MOID = 2.52127 au 
 T_jup = 3.610 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.49310702167425E-15 -3.33529310747093E-15 2.504392689157262E-13 1.49697662886013E-15 8.351882362053526E-14 1.667320390001975E-16
q -3.33529310747093E-15 7.522767743921252E-15 -4.269622334994653E-13 -3.624531379310795E-15 -1.466211104862407E-13 -2.130785146839341E-16
tp 2.504392689157262E-13 -4.269622334994653E-13 2.821373824980692E-9 -8.163387893035382E-13 8.312849473971339E-10 7.478482109243059E-13
node 1.49697662886013E-15 -3.624531379310795E-15 -8.163387893035382E-13 9.208816602915942E-9 -9.194655454242316E-9 -3.800701964796532E-11
peri 8.351882362053526E-14 -1.466211104862407E-13 8.312849473971339E-10 -9.194655454242316E-9 9.437033396484993E-9 3.819506205924977E-11
i 1.667320390001975E-16 -2.130785146839341E-16 7.478482109243059E-13 -3.800701964796532E-11 3.819506205924977E-11 1.919917242224998E-11

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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