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70699 (1999 US27)
Classification: Main-belt Asteroid          SPK-ID: 2070699
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170354655270072 4.2453e-08  
a 2.388756510841526 9.4355e-09 au
q 2.109187280564519 1.0195e-07 au
i 2.116802015286812 4.5236e-06 deg
node 207.8280071342202 9.1263e-05 deg
peri 1.367228864370573 9.2721e-05 deg
M 55.00675132772367 1.559e-05 deg
tp 2458994.451361942440
(2020-May-24.95136194)
5.8655e-05 TDB
period 1348.516462257167
3.69
7.9899e-06
2.188e-08
d
yr
n .2669600335448827 1.5817e-09 deg/d
Q 2.668325741118533 1.054e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1056  
   data-arc span      9591 days (26.26 yr)  
   first obs. used      1994-03-04  
   last obs. used      2020-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:36:35  

Additional Information
 Earth MOID = 1.103 au 
 Jupiter MOID = 2.29267 au 
 T_jup = 3.523 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO502590  
diameter diameter 4.415 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70699 (1999 US27)          Discovered 1999-Oct-30 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 US27 = 1998 HK97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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