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71135 (1999 XM178)
Classification: Main-belt Asteroid          SPK-ID: 2071135
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02825561360481725 4.1075e-08  
a 2.992967449630754 2.0808e-08 au
q 2.908399317842192 1.2513e-07 au
i 12.65015456184417 4.2399e-06 deg
node 87.22609184589994 1.8402e-05 deg
peri 279.2876804189963 8.0975e-05 deg
M 80.75573402602193 7.8026e-05 deg
tp 2458576.249575479845
(2019-Apr-02.74957548)
0.0004114 TDB
period 1891.260783761082
5.18
1.9723e-05
5.4e-08
d
yr
n .1903492120658691 1.985e-09 deg/d
Q 3.077535581419316 2.1396e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1618  
   data-arc span      7793 days (21.34 yr)  
   first obs. used      1998-09-28  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:21:19  

Additional Information
 Earth MOID = 1.94216 au 
 Jupiter MOID = 2.11375 au 
 T_jup = 3.218 
[ 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 13.4   n/a MPO359240  
diameter diameter 12.657 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71135 (1999 XM178)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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