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30841 (1991 GA3)
Classification: Main-belt Asteroid          SPK-ID: 2030841
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051698065935229 5.5995e-08  
a 2.483449182816363 1.2049e-08 au
q 2.222265312574724 1.4481e-07 au
i 6.166477736383725 4.6288e-06 deg
node 191.9939455348977 3.5846e-05 deg
peri 330.5414420308424 3.9997e-05 deg
M 288.6546138951867 1.9805e-05 deg
tp 2459679.798800247369
(2022-Apr-10.29880025)
7.9455e-05 TDB
period 1429.490730335709
3.91
1.0403e-05
2.848e-08
d
yr
n .2518379394565613 1.8327e-09 deg/d
Q 2.744633053058003 1.3316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      10938 days (29.95 yr)  
   first obs. used      1991-03-23  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49417  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:01:03  

Additional Information
 Earth MOID = 1.2327 au 
 Jupiter MOID = 2.23434 au 
 T_jup = 3.461 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457344.5 (2015-Nov-18.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038568952097338 5.6042e-08  
q 2.226096037050267 1.4476e-07 au
tp 2456819.780343416385
(2014-Jun-11.28034342)
7.4534e-05 TDB
node 192.0774286853991 3.5821e-05 deg
peri 330.4538482406145 4.0073e-05 deg
i 6.167356468829623 4.6297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      10938 days (29.95 yr)  
   first obs. used      1991-03-23  
   last obs. used      2021-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49417  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:01:03  

Additional Information
 Jupiter MOID = 2.23434 au 
 T_jup = 3.461 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.140703312484404E-15 -8.095573092431276E-15 -5.657223883673535E-13 -1.126442593822021E-14 -3.340957785518721E-14 -7.286934520860172E-15
q -8.095573092431276E-15 2.095530424337506E-14 1.520865399050285E-12 2.91758255892449E-14 1.078882534781674E-13 1.904377887007175E-14
tp -5.657223883673535E-13 1.520865399050285E-12 5.555353065799837E-9 1.890793100665213E-11 1.344760719749918E-9 2.836641477722091E-12
node -1.126442593822021E-14 2.91758255892449E-14 1.890793100665213E-11 1.283179103635984E-9 -1.27095145578662E-9 -2.044258095644899E-11
peri -3.340957785518721E-14 1.078882534781674E-13 1.344760719749918E-9 -1.27095145578662E-9 1.605838549929554E-9 2.086499290720312E-11
i -7.286934520860172E-15 1.904377887007175E-14 2.836641477722091E-12 -2.044258095644899E-11 2.086499290720312E-11 2.143402141808673E-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 14.70   n/a E2021B10  
diameter diameter 2.259 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.500   0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30841 (1991 GA3)          Discovered 1991-Apr-08 by Elst, E. W. at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 GA3 = 1991 FH4 = 1999 JS14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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