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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2620128270580974 4.6894e-08  
a 2.422368091287133 7.5651e-09 au
q 1.787676579513663 1.1615e-07 au
i 4.676667686254768 3.8898e-06 deg
node 274.1842875539712 5.4e-05 deg
peri 56.70762769241633 5.4296e-05 deg
M 250.5425476433903 6.7053e-06 deg
tp 2459019.198560129699
(2020-Jun-18.69856013)
2.6673e-05 TDB
period 1377.078292993813
3.77
6.4509e-06
1.766e-08
d
yr
n .261423044594907 1.2246e-09 deg/d
Q 3.057059603060602 9.5472e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1338  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1997-06-28  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54339  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:26:26  

Additional Information
 Earth MOID = .78111 au 
 Jupiter MOID = 2.32643 au 
 T_jup = 3.461 
[ 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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