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26957 (1997 MN4)
Classification: Main-belt Asteroid          SPK-ID: 2026957
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2617663185888778 4.6223e-08  
a 2.423044911626197 7.2429e-09 au
q 1.788773365334294 1.1434e-07 au
i 4.676655123045924 3.8425e-06 deg
node 274.1795619586397 5.3552e-05 deg
peri 56.59010655764971 5.3842e-05 deg
M 355.1693839869197 6.715e-06 deg
tp 2459018.985901673815
(2020-Jun-18.48590167)
2.5741e-05 TDB
period 1377.655475937943
3.77
6.1771e-06
1.691e-08
d
yr
n .2613135187191144 1.1717e-09 deg/d
Q 3.057316457918099 9.1389e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1366  
   data-arc span      8382 days (22.95 yr)  
   first obs. used      1997-06-28  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:30:38  

Additional Information
 Earth MOID = .78306 au 
 Jupiter MOID = 2.32874 au 
 T_jup = 3.460 
[ 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 14.6   n/a MPO435951  
diameter diameter 4.460 km 0.273 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.141   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26957 (1997 MN4)          Discovered 1997-Jun-28 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 MN4 = 1998 YH10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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