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37771 (1997 GQ22)
Classification: Outer Main-belt Asteroid          SPK-ID: 2037771
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1489595222785142 5.7417e-08  
a 3.201839512682614 2.358e-08 au
q 2.724895028460941 1.8138e-07 au
i 12.93732359336933 6.5757e-06 deg
node 218.1251649778952 2.1448e-05 deg
peri 127.7336720619932 2.8197e-05 deg
M 258.8391407212621 2.0448e-05 deg
tp 2459588.541227446835
(2022-Jan-09.04122745)
0.00012203 TDB
period 2092.65563173557
5.73
2.3117e-05
6.329e-08
d
yr
n .1720302158370078 1.9004e-09 deg/d
Q 3.678783996904287 2.7093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1023  
   data-arc span      11543 days (31.60 yr)  
   first obs. used      1987-09-23  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54546  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:58:40  

Additional Information
 Earth MOID = 1.74245 au 
 Jupiter MOID = 1.92602 au 
 T_jup = 3.137 
[ 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 13.4   n/a MPO395360  
diameter diameter 12.159 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.764 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.048   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37771 (1997 GQ22)          Discovered 1997-Apr-06 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 GQ22 = 1987 SY23 = 1991 GX12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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