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70998 (1999 XH36)
Classification: Main-belt Asteroid          SPK-ID: 2070998
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05748219209442364 4.6438e-08  
a 2.962254394940039 1.8845e-08 au
q 2.791977518777545 1.4032e-07 au
i 10.23472871686128 4.7434e-06 deg
node 66.21746308367288 2.5517e-05 deg
peri 356.8060874976782 4.8361e-05 deg
M 37.54987479483501 4.0027e-05 deg
tp 2458806.260322611073
(2019-Nov-18.76032261)
0.00020698 TDB
period 1862.224154995902
5.10
1.777e-05
4.865e-08
d
yr
n .1933172217932015 1.8447e-09 deg/d
Q 3.132531271102533 1.9928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      7797 days (21.35 yr)  
   first obs. used      1998-09-27  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:18:52  

Additional Information
 Earth MOID = 1.80526 au 
 Jupiter MOID = 2.14072 au 
 T_jup = 3.239 
[ 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 13.7   n/a MPO502591  
diameter diameter 6.346 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.191   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70998 (1999 XH36)          Discovered 1999-Dec-06 by Kobayashi, T. at Oizumi
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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