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89959 (2002 NT7)
Classification: Apollo [NEO, PHA]          SPK-ID: 2089959
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 159 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5282003166770998 2.4163e-08  
a 1.735465182887233 2.6709e-09 au
q .8187919237041157 4.1522e-08 au
i 42.35499724310984 6.5486e-06 deg
node 132.0253130989607 4.7553e-06 deg
peri 300.7069949781333 6.8167e-06 deg
M 322.9659211976398 7.6235e-06 deg
tp 2459286.405571281127
(2021-Mar-12.90557128)
1.7864e-05 TDB
period 835.0688517526961
2.29
1.9278e-06
5.278e-09
d
yr
n .431102177077266 9.9521e-10 deg/d
Q 2.65213844207035 4.0817e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      24440 days (66.91 yr)  
   first obs. used      1954-07-10  
   last obs. used      2021-06-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43323  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-08 05:52:16  

Additional Information
 Earth MOID = 2.03149E-5 au 
 Jupiter MOID = 3.08294 au 
 T_jup = 3.723 
[ 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 16.45   n/a MPCxxxxx  
diameter diameter 1.407 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  
rotation period rot_per 5.527 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 304-314.]
geometric albedo albedo 0.224   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2011ApJ...743..156M)  

89959 (2002 NT7)          Discovered 2002-Jul-09 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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