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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581958463754635 3.9596e-08  
a 2.74725788723768 1.3351e-08 au
q 2.312653100554448 1.1075e-07 au
i 10.22941510034693 3.8021e-06 deg
node 122.7428240972721 2.7205e-05 deg
peri 290.5783474117662 3.0595e-05 deg
M 188.4251785466993 1.4359e-05 deg
tp 2460189.181322111536
(2023-Sep-01.68132211)
6.8685e-05 TDB
period 1663.211848585976
4.55
1.2124e-05
3.319e-08
d
yr
n .2164486744764738 1.5778e-09 deg/d
Q 3.181862673920913 1.5463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1145  
   data-arc span      8980 days (24.59 yr)  
   first obs. used      1996-11-11  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 20:34:05  

Additional Information
 Earth MOID = 1.3475 au 
 Jupiter MOID = 2.21192 au 
 T_jup = 3.306 
[ 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 14.71   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

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