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(2004 US1)
Classification: Apollo [NEO]          SPK-ID: 3258075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4513179701820671 0.00031695  
a 1.284574727641649 0.00065529 au
q .7048230690152383 4.7625e-05 au
i 21.40966919084602 0.017983 deg
node 223.3540522854807 0.00038128 deg
peri 74.28488613617657 0.001711 deg
M 302.2755881107529 2.9369 deg
tp 2459085.769654517134
(2020-Aug-24.26965452)
4.4036 TDB
period 531.7867193703967
1.46
0.40691
0.001114
d
yr
n .676963126168736 0.000518 deg/d
Q 1.86432638626806 0.00095104 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      28 days  
   first obs. used      2004-10-18  
   last obs. used      2004-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .57993  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:11:57  

Additional Information
 Earth MOID = .0653453 au 
 Jupiter MOID = 3.4935 au 
 T_jup = 4.876 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.8   n/a MPO230202  

[ 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
1985-Nov-05 15:05 7_12:19 Earth 0.335357367697502 0.136881890685023 0.550504200013308 25.7586282582582 25.7583198085431 2446375.128681403 10818.5443741791 10974046.6411787 137.360019561766 -15.6138047344419 90044.7617575595 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
1988-Oct-21 02:09 19:43 Earth 0.236207337751489 0.108568045157927 0.421132405958111 13.2223481618928 13.221495013858 2447455.589732269 1182.68109582167 9819588.25127301 40.9060473441075 27.1405156908172 218488.614887693 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
1994-Apr-18 06:30 6_12:40 Earth 0.155369331715562 0.0778470237679884 0.27646591248559 21.0434342432375 21.0426192784366 2449460.770686299 9400.16849599618 6522207.34567237 303.417564176914 30.0335187941948 35657.3497998582 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
2001-Nov-11 01:11 1_03:17 Earth 0.460910779368815 0.426477517020106 0.495438137425188 29.468312536114 29.4681163620135 2452224.549414115 1637.02382970521 1750475.51670183 147.493103311827 -10.7844859081012 81163.5147509936 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
2004-Oct-22 15:45 < 00:01 Earth 0.1285400007166 0.128264486513161 0.128815514719888 15.5971131754042 15.5957841039223 2453301.155930083 0.254610094002003 13736.4458158924 24.5778169473077 0.0903537669800401 1205.78558573192 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
2010-Apr-25 07:49 4_12:39 Earth 0.0681350756080333 0.0656158573608481 0.115890153293527 18.1445066476625 18.1423512756168 2455311.825777238 6519.00262200751 3849112.95975387 295.409371233048 74.3910780736791 31607.5347030483 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
2020-Oct-25 12:34 6_23:01 Earth 0.0994961099407271 0.097705926725083 0.261030189692593 17.8801018215316 17.878604019351 2459148.023793231 10020.9375045869 11134110.931481 102.343043923485 -79.1226774031059 123001.042523005 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
2023-Jun-23 14:44 8_15:47 Venus 0.120785981446164 0.118727103554213 0.325334138217173 19.1383246018086 19.1373851832064 2460119.114021054 12466.9018287941 13998303.4963905 246.567067651725 -79.4198957484962 74343.0411637244 T 16 CATAB v2.0e-lin.ifort 2017-Nov-27 23:20:19 2018-Dec-11 14:45
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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