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1722 Goffin (1938 EG)
Classification: Main-belt Asteroid          SPK-ID: 2001722
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0500238800581382 3.2587e-08  
a 2.513244042632334 7.8824e-09 au
q 2.387521824086864 8.3461e-08 au
i 5.46582566174272 3.6289e-06 deg
node 168.025329540087 3.8191e-05 deg
peri 284.9743012158429 5.4299e-05 deg
M 287.5288655968947 3.989e-05 deg
tp 2459293.463137605053
(2021-Mar-19.96313761)
0.00016171 TDB
period 1455.292930164205
3.98
6.8464e-06
1.874e-08
d
yr
n .2473728776785716 1.1638e-09 deg/d
Q 2.638966261177805 8.2767e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2654  
   data-arc span      30113 days (82.44 yr)  
   first obs. used      1938-02-23  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45379  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:39:55  

Additional Information
 Earth MOID = 1.41129 au 
 Jupiter MOID = 2.43565 au 
 T_jup = 3.452 
[ 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 12.0   n/a MPO492770  
diameter diameter 10.290 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 29.19 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1984) http://www.asu.cas.cz/~ppravec/neo.htm]
[Ditteon, R.; Adam, A.; Doyel, M.; Gibson, J.; et al. (2018) Minor Planet Bull. 45, 13-16.]
geometric albedo albedo 0.224   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.890   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.11 deg.

1722 Goffin (1938 EG)          Discovered 1938-Feb-23 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1938 EG = 1942 DJ = 1950 HK = 1952 SW = 1952 UQ = 1960 WB = 1964 UF = 1964 VD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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