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90574 (2004 GS21)
Classification: Main-belt Asteroid          SPK-ID: 2090574
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964212457295522 3.8794e-08  
a 2.678121903551483 1.3056e-08 au
q 2.152081863040301 1.0428e-07 au
i 12.13736540662428 4.5724e-06 deg
node 171.9103469884533 1.9153e-05 deg
peri 157.8395939183254 2.2298e-05 deg
M 167.6168524646153 1.2849e-05 deg
tp 2458255.151950228082
(2018-May-16.65195023)
5.5631e-05 TDB
period 1600.825298724275
4.38
1.1706e-05
3.205e-08
d
yr
n .2248840021999216 1.6444e-09 deg/d
Q 3.204161944062665 1.562e-08 au
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      8541 days (23.38 yr)  
   first obs. used      1996-09-13  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50218  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:14:03  

Additional Information
 Earth MOID = 1.14706 au 
 Jupiter MOID = 2.21844 au 
 T_jup = 3.318 
[ 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 15.2   n/a MPO449557  

90574 (2004 GS21)          Discovered 2004-Apr-11 by NEAT at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2004 GS21 = 1996 TP42 = 2001 VF97 = 2003 ES13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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