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1944 Gunter (1925 RA)
Classification: Main-belt Asteroid          SPK-ID: 2001944
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2365777578840844 1.6542e-08  
a 2.2403358551521 4.1372e-09 au
q 1.710322221632893 3.7364e-08 au
i 5.487624353378837 8.582e-07 deg
node 212.4174800411274 9.2051e-06 deg
peri 124.8426366339156 1.0344e-05 deg
M 158.9115463811469 4.4417e-06 deg
tp 2458659.843941173330
(2019-Jun-25.34394117)
1.4456e-05 TDB
period 1224.808301284599
3.35
3.3927e-06
9.289e-09
d
yr
n .2939235467480308 8.1417e-10 deg/d
Q 2.770349488671307 5.1159e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2597  
   data-arc span      34881 days (95.50 yr)  
   first obs. used      1925-09-14  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46817  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:08:40  

Additional Information
 Earth MOID = .707049 au 
 Jupiter MOID = 2.64845 au 
 T_jup = 3.592 
[ 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 13.91   n/a E2021B10  
diameter diameter 4.905 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.117   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1944 Gunter (1925 RA)          Discovered 1925-Sep-14 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1925 RA = 1972 TY3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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