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37580 (1990 SH8)
Classification: Main-belt Asteroid          SPK-ID: 2037580
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07777018795950437 3.4462e-08  
a 2.223894871187162 6.9846e-09 au
q 2.050942149052758 7.6112e-08 au
i 6.058777465935363 3.4799e-06 deg
node 137.2421288119743 3.2635e-05 deg
peri 323.2245245513789 3.9265e-05 deg
M 250.034319312799 2.2485e-05 deg
tp 2459370.519381475326
(2021-Jun-05.01938148)
7.6185e-05 TDB
period 1211.350454966277
3.32
5.7068e-06
1.562e-08
d
yr
n .29718897493626 1.4001e-09 deg/d
Q 2.396847593321564 7.5278e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1529  
   data-arc span      10596 days (29.01 yr)  
   first obs. used      1990-09-14  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52109  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:34:37  

Additional Information
 Earth MOID = 1.07124 au 
 Jupiter MOID = 2.68624 au 
 T_jup = 3.636 
[ 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 14.7   n/a MPO493113  
diameter diameter 3.359 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.188   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37580 (1990 SH8)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 SH8 = 1992 EN37 = 1997 WE48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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