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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 
[ 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 14.8   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

[ 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
2117-Nov-05 21:28 00:05 Hebe 0.011862207889799 0.0118476657212727 0.0118767729296766 5.36793331657928 5.36793321894891 2494587.394132941 4.69273550921564 1096.82473753079 44.6759375510859 48.6450926028194 29822.3193437353 T 21 CATAB v2.0f-lin.ifort 2020-Feb-23 16:19:32 2020-Feb-23 16:19

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