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37748 (1997 AF2)
Classification: Main-belt Asteroid          SPK-ID: 2037748
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1580640154598769 4.1296e-08  
a 2.747628006764697 1.3892e-08 au
q 2.313326891025451 1.1451e-07 au
i 10.22939034893715 4.4906e-06 deg
node 122.7430294756007 2.897e-05 deg
peri 290.6219975121531 3.4296e-05 deg
M 145.9494764207443 1.6884e-05 deg
tp 2458526.072346653759
(2019-Feb-11.57234665)
7.7471e-05 TDB
period 1663.547969879101
4.55
1.2616e-05
3.454e-08
d
yr
n .2164049408362796 1.6412e-09 deg/d
Q 3.181929122503943 1.6088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1089  
   data-arc span      8818 days (24.14 yr)  
   first obs. used      1996-11-11  
   last obs. used      2021-01-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51121  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:29:22  

Additional Information
 Earth MOID = 1.34786 au 
 Jupiter MOID = 2.21079 au 
 T_jup = 3.306 
[ 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 14.71   n/a E2021B10  
diameter diameter 3.487 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.11989 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.252   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37748 (1997 AF2)          Discovered 1997-Jan-03 by Kobayashi, T. at Oizumi
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1997 AF2 = 2000 SJ222 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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