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56402 (2000 ET157)
Classification: Main-belt Asteroid          SPK-ID: 2056402
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1378390797084708 3.592e-08  
a 2.327152869920489 7.1929e-09 au
q 2.006380259989723 8.2647e-08 au
i 5.256662639006033 4.1649e-06 deg
node 262.437758286005 4.5046e-05 deg
peri 69.30237464936228 4.8168e-05 deg
M 107.7187333695522 1.6153e-05 deg
tp 2458612.506425409561
(2019-May-09.00642541)
5.7914e-05 TDB
period 1296.688909006791
3.55
6.0118e-06
1.646e-08
d
yr
n .2776301991167216 1.2872e-09 deg/d
Q 2.647925479851256 8.1843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1430  
   data-arc span      7980 days (21.85 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:59:30  

Additional Information
 Earth MOID = 1.00279 au 
 Jupiter MOID = 2.68122 au 
 T_jup = 3.555 
[ 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 15.0   n/a MPO449364  

56402 (2000 ET157)          Discovered 2000-Mar-12 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 ET157 = 2001 MO15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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