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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2617663171275434 4.2439e-08  
a 2.423044911904351 6.4499e-09 au
q 1.788773369080516 1.0432e-07 au
i 4.676655693671698 3.6893e-06 deg
node 274.1795618081251 5.3523e-05 deg
peri 56.59010679768078 5.38e-05 deg
M 355.1693837528368 6.1143e-06 deg
tp 2459018.985902572792
(2020-Jun-18.48590257)
2.343e-05 TDB
period 1377.655476175166
3.77
5.5008e-06
1.506e-08
d
yr
n .261313518674118 1.0434e-09 deg/d
Q 3.057316454728186 8.1383e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1500  
   data-arc span      8438 days (23.10 yr)  
   first obs. used      1997-06-28  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 02:26:29  

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

[ 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
2181-Jun-12 20:48 00:02 Iris 0.0375864691038364 0.0375674364442496 0.037605506876845 6.13435406024727 6.13435403531437 2517817.366418730 2.31352032338669 1174.56184405817 48.040489247534 -36.1365130891583 69112.5201687874 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 02:26:41 2020-Aug-25 02:26

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