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70005 (1998 XN28)
Classification: Outer Main-belt Asteroid          SPK-ID: 2070005
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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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 .08883783138712971 3.3415e-08  
a 3.232764272948855 2.1564e-08 au
q 2.945572505554288 1.1136e-07 au
i 10.24550780804523 3.934e-06 deg
node 52.38132875142685 2.1762e-05 deg
peri 244.9968056561309 3.3493e-05 deg
M 11.9509239414507 2.3912e-05 deg
tp 2458930.021205791867
(2020-Mar-21.52120579)
0.00014117 TDB
period 2123.046388650001
5.81
2.1242e-05
5.816e-08
d
yr
n .1695676561400602 1.6966e-09 deg/d
Q 3.519956040343422 2.348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1905  
   data-arc span      11146 days (30.52 yr)  
   first obs. used      1990-04-24  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:02:34  

Additional Information
 Earth MOID = 1.94871 au 
 Jupiter MOID = 1.66601 au 
 T_jup = 3.155 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457348.5 (2015-Nov-22.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08912151982309384 3.338e-08  
q 2.942578632178595 1.1143e-07 au
tp 2456821.466931013471
(2014-Jun-12.96693101)
0.00014782 TDB
node 52.45488152283431 2.1704e-05 deg
peri 247.128777160741 3.3406e-05 deg
i 10.26291438823578 3.9397e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1905  
   data-arc span      11146 days (30.52 yr)  
   first obs. used      1990-04-24  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:02:34  

Additional Information
 Jupiter MOID = 1.66601 au 
 T_jup = 3.155 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.114244927490438E-15 -3.662240323551185E-15 6.207981018057361E-13 2.12842510695052E-15 1.170511719280841E-13 -1.400317834457236E-15
q -3.662240323551185E-15 1.241596400354459E-14 -3.139909457429198E-12 -8.372849954730429E-15 -5.545222194489172E-13 5.348205376960609E-15
tp 6.207981018057361E-13 -3.139909457429198E-12 2.185017391740536E-8 3.982789385423758E-12 3.772082278052239E-9 -3.193092706496283E-12
node 2.12842510695052E-15 -8.372849954730429E-15 3.982789385423758E-12 4.710819389108574E-10 -4.626443206564646E-10 -4.223679165774506E-12
peri 1.170511719280841E-13 -5.545222194489172E-13 3.772082278052239E-9 -4.626443206564646E-10 1.115982661653968E-9 3.65986893437079E-12
i -1.400317834457236E-15 5.348205376960609E-15 -3.193092706496283E-12 -4.223679165774506E-12 3.65986893437079E-12 1.55214385611949E-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 12.6   n/a MPO493356  
diameter diameter 15.578 km 3.790 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.055   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

70005 (1998 XN28)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 XN28 = 1990 HT = 2000 AS228 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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