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120250 (2004 GU4)
Classification: Main-belt Asteroid          SPK-ID: 2120250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336533320475274 3.1618e-08  
a 2.287681441935617 9.7623e-09 au
q 1.981925194557629 7.3356e-08 au
i 6.439793152800863 3.8342e-06 deg
node 69.00403989681597 3.2452e-05 deg
peri 251.76476700 3.5791e-05 deg
M 198.6467772520884 1.6115e-05 deg
tp 2459766.956929463559
(2022-Jul-06.45692946)
5.8208e-05 TDB
period 1263.838993321383
3.46
8.0899e-06
2.215e-08
d
yr
n .2848464099480869 1.8233e-09 deg/d
Q 2.593437689313604 1.1067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      709  
   data-arc span      8212 days (22.48 yr)  
   first obs. used      1998-09-20  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55429  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:05:36  

Additional Information
 Earth MOID = .978329 au 
 Jupiter MOID = 2.68339 au 
 T_jup = 3.580 
[ 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 16.2   n/a MPO449699  

120250 (2004 GU4)          Discovered 2004-Apr-11 by NEAT at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ 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
2154-Feb-26 15:22 < 00:01 Hebe 0.00146690763039412 0.00145452651568031 0.00147942961567378 6.33896117731234 6.33896050875802 2507849.140242321 0.50917746001797 948.542075803722 24.4630139020988 -49.1433433478472 6781.05765585527 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 17:05:38 2021-Apr-13 17:05

Alternate Designations
 2004 GU4 = 1998 SL66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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