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192434 (1997 US1)
Classification: Main-belt Asteroid          SPK-ID: 2192434
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04883115417211739 5.3011e-08  
a 3.198145982055474 2.4949e-08 au
q 3.041976822540786 1.7563e-07 au
i 12.28976171239145 5.8835e-06 deg
node 216.6895738218069 2.2027e-05 deg
peri 202.4115267426985 5.9207e-05 deg
M 349.1787100439607 5.4032e-05 deg
tp 2459263.294612616826
(2021-Feb-17.79461262)
0.0003135 TDB
period 2089.03565414962
5.72
2.4445e-05
6.693e-08
d
yr
n .1723283177502992 2.0165e-09 deg/d
Q 3.354315141570162 2.6167e-08 au
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      8492 days (23.25 yr)  
   first obs. used      1997-10-09  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55213  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:05  

Additional Information
 Earth MOID = 2.05526 au 
 Jupiter MOID = 1.90904 au 
 T_jup = 3.157 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457772.5 (2017-Jan-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04636183421722517 5.2916e-08  
q 3.053437000796908 1.7352e-07 au
tp 2457142.674318020964
(2015-Apr-30.17431802)
0.00033355 TDB
node 216.7518896601122 2.2019e-05 deg
peri 197.6108367439255 6.2092e-05 deg
i 12.28321098853912 5.8899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      303  
   data-arc span      8492 days (23.25 yr)  
   first obs. used      1997-10-09  
   last obs. used      2021-01-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55213  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:05  

Additional Information
 Jupiter MOID = 1.90904 au 
 T_jup = 3.157 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.800117901606011E-15 -9.097462857844933E-15 -3.149835694425527E-12 -7.520780623772906E-15 -4.549551090881901E-13 8.509446092593101E-16
q -9.097462857844933E-15 3.010852423886988E-14 9.189233264078093E-12 2.13960942950044E-14 1.327144997786368E-12 -1.857749845079674E-15
tp -3.149835694425527E-12 9.189233264078093E-12 1.112584629874458E-7 1.322369086423554E-11 1.937487965805183E-8 3.040082966037996E-11
node -7.520780623772906E-15 2.13960942950044E-14 1.322369086423554E-11 4.848531779724878E-10 -4.72033733413859E-10 -2.622465008292269E-11
peri -4.549551090881901E-13 1.327144997786368E-12 1.937487965805183E-8 -4.72033733413859E-10 3.855400895289142E-9 3.100993460461965E-11
i 8.509446092593101E-16 -1.857749845079674E-15 3.040082966037996E-11 -2.622465008292269E-11 3.100993460461965E-11 3.469124838006724E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.57   n/a E2021B55  

192434 (1997 US1)          Discovered 1997-Oct-23 by Spacewatch at Kitt Peak
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

Alternate Designations
 1997 US1 = 2003 UF38 = 2003 UK284 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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