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21099 (1992 GM2)
Classification: Main-belt Asteroid          SPK-ID: 2021099
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09439636820778841 3.6317e-08  
a 2.13026104200588 5.2082e-09 au
q 1.929172136305986 7.9845e-08 au
i .983538527180712 2.8998e-06 deg
node 301.019113148742 0.00021848 deg
peri 344.2744210298558 0.0002194 deg
M 13.00911872778736 2.075e-05 deg
tp 2459159.461352343776
(2020-Nov-05.96135234)
6.5437e-05 TDB
period 1135.658261361225
3.11
4.1648e-06
1.14e-08
d
yr
n .3169967694053457 1.1625e-09 deg/d
Q 2.331349947705774 5.6998e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1958  
   data-arc span      10367 days (28.38 yr)  
   first obs. used      1992-04-04  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:39:07  

Additional Information
 Earth MOID = .910837 au 
 Jupiter MOID = 2.76557 au 
 T_jup = 3.716 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.89   n/a E2021B10  
diameter diameter 2.922 km 0.537 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.172   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21099 (1992 GM2)          Discovered 1992-Apr-04 by Elst, E. W. at La Silla
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 GM2 = 1998 FX119 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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