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JPL Small-Body Database Browser
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71015 (1999 XM55)
Classification: Main-belt Asteroid          SPK-ID: 2071015
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03215149381670327 4.7461e-08  
a 2.794794898301827 1.7852e-08 au
q 2.704938067410122 1.3418e-07 au
i 4.004148511863836 4.5912e-06 deg
node 66.76889738765729 8.1768e-05 deg
peri 75.37825859043159 0.00012057 deg
M 67.64912754263213 8.7225e-05 deg
tp 2458679.811756584324
(2019-Jul-15.31175658)
0.0004134 TDB
period 1706.566985019706
4.67
1.6351e-05
4.477e-08
d
yr
n .2109498209915522 2.0212e-09 deg/d
Q 2.884651729193533 1.8426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      815  
   data-arc span      7829 days (21.43 yr)  
   first obs. used      1998-08-25  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .534  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:19:13  

Additional Information
 Earth MOID = 1.72083 au 
 Jupiter MOID = 2.10151 au 
 T_jup = 3.323 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456672.5 (2014-Jan-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03408378306359394 4.8118e-08  
q 2.700708816887748 1.3682e-07 au
tp 2456983.646330728928
(2014-Nov-22.14633073)
0.00038278 TDB
node 66.86559576540449 8.1618e-05 deg
peri 77.79129654914851 0.00011571 deg
i 4.007350777405973 4.5938e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      815  
   data-arc span      7829 days (21.43 yr)  
   first obs. used      1998-08-25  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .534  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:19:13  

Additional Information
 Jupiter MOID = 2.10151 au 
 T_jup = 3.323 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.315319857173374E-15 -6.530683964478583E-15 7.843007945783293E-12 8.4647256816248E-15 1.687702315382839E-12 -1.022754674402024E-15
q -6.530683964478583E-15 1.871861400404736E-14 -2.222689777035953E-11 -2.34464723070708E-14 -4.798887862808998E-12 3.030216590687968E-15
tp 7.843007945783293E-12 -2.222689777035953E-11 1.465240201513459E-7 5.796107983417863E-12 3.144631495847397E-8 -5.485168576678619E-12
node 8.4647256816248E-15 -2.34464723070708E-14 5.796107983417863E-12 6.661565282536019E-9 -6.643504081292332E-9 -1.155581003069636E-10
peri 1.687702315382839E-12 -4.798887862808998E-12 3.144631495847397E-8 -6.643504081292332E-9 1.338985940877332E-8 1.140894132274586E-10
i -1.022754674402024E-15 3.030216590687968E-15 -5.485168576678619E-12 -1.155581003069636E-10 1.140894132274586E-10 2.110284307834163E-11

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 14.8   n/a MPO324923  
diameter diameter 4.128 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.164   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71015 (1999 XM55)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XM55 = 1998 QN63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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