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487611 (2015 MA57)
Classification: Main-belt Asteroid          SPK-ID: 2487611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553429343861432 5.112e-08  
a 2.356818814922445 2.4682e-08 au
q 1.99070366439592 1.1265e-07 au
i 5.406121388342294 5.6737e-06 deg
node 118.8935128605566 5.1975e-05 deg
peri 234.562915439536 5.9833e-05 deg
M 81.45202248705498 2.2741e-05 deg
tp 2458701.489049558002
(2019-Aug-05.98904956)
8.5075e-05 TDB
period 1321.562545315887
3.62
2.076e-05
5.684e-08
d
yr
n .2724048144947622 4.2792e-09 deg/d
Q 2.72293396544897 2.8516e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      2001-10-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54783  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 03:44:30  

Additional Information
 Earth MOID = .990781 au 
 Jupiter MOID = 2.70609 au 
 T_jup = 3.532 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457526.5 (2016-May-18.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1565877116404669 5.1308e-08  
q 1.987280529282718 1.1326e-07 au
tp 2457379.423807946162
(2015-Dec-22.92380795)
9.2904e-05 TDB
node 118.9680915715899 5.2018e-05 deg
peri 234.3206774739392 5.9669e-05 deg
i 5.404897318704916 5.6723e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      2001-10-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54783  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 03:44:30  

Additional Information
 Jupiter MOID = 2.70609 au 
 T_jup = 3.532 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.632555970431666E-15 -5.732457747215639E-15 -1.134597498560041E-12 -1.021210324314795E-14 -2.728171322840314E-13 -8.561592250130516E-15
q -5.732457747215639E-15 1.282692246178135E-14 1.626468049061831E-12 2.523510983508378E-14 3.376776349775402E-13 2.065415835369068E-14
tp -1.134597498560041E-12 1.626468049061831E-12 8.63107327806364E-9 8.168270737202477E-12 2.728718164766596E-9 -7.014760373959612E-12
node -1.021210324314795E-14 2.523510983508378E-14 8.168270737202477E-12 2.705836759465733E-9 -2.690074815943646E-9 1.070381915682628E-11
peri -2.728171322840314E-13 3.376776349775402E-13 2.728718164766596E-9 -2.690074815943646E-9 3.560395369971108E-9 -1.322504482315758E-11
i -8.561592250130516E-15 2.065415835369068E-14 -7.014760373959612E-12 1.070381915682628E-11 -1.322504482315758E-11 3.217535048242738E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.3   n/a MPO450509  

487611 (2015 MA57)          Discovered 2008-Sep-03 by OAM at La Sagra
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 MA57 = 2008 RH48 = 2014 DA57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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