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215342 (2001 US225)
Classification: Main-belt Asteroid          SPK-ID: 2215342
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07500632401460375 6.6103e-08  
a 2.784748927257552 2.9609e-08 au
q 2.575875146920352 1.9973e-07 au
i 5.476754605964874 5.5238e-06 deg
node 89.51743063912622 6.876e-05 deg
peri 242.5368552986606 8.2104e-05 deg
M 42.34147722521822 4.1819e-05 deg
tp 2458800.863016146184
(2019-Nov-13.36301615)
0.00019809 TDB
period 1697.373802172616
4.65
2.7072e-05
7.412e-08
d
yr
n .212092350865322 3.3827e-09 deg/d
Q 2.993622707594752 3.183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      9773 days (26.76 yr)  
   first obs. used      1992-11-18  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:04:08  

Additional Information
 Earth MOID = 1.57055 au 
 Jupiter MOID = 2.26158 au 
 T_jup = 3.321 
[ 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 16.3   n/a MPO440135  
diameter diameter 3.381 km 0.708 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215342 (2001 US225)          Discovered 2001-Oct-16 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ 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
1954-Jan-16 00:52 00:09 Iris 0.0469243882844322 0.0469116128385867 0.0469371722703126 4.41438798554927 4.41438795779666 2434758.535799661 8.64032225221439 1188.26732746422 65.1321359833035 57.7171687382289 91130.4186340178 T 12 CATAB v2.0f-lin.ifort 2019-Sep-24 04:04:10 2019-Sep-24 04:04
2179-Jun-15 18:32 00:04 Inter 0.0255987542784809 0.0255504509369789 0.0256472507859473 7.03649355687785 7.03649347560536 2517089.272096052 3.79398090479601 4256.25819671961 49.0209798678116 -55.4718240582398 64339.7900362054 T 12 CATAB v2.0f-lin.ifort 2019-Sep-24 04:04:10 2019-Sep-24 04:04

Alternate Designations
 2001 US225 = 2006 WO61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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