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1485 Isa (1938 OB)
Classification: Main-belt Asteroid          SPK-ID: 2001485
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158757679892355 4.5629e-08  
a 3.025599239411785 1.3115e-08 au
q 2.675005603917298 1.3852e-07 au
i 8.924437743406592 4.4682e-06 deg
node 297.5291865099721 2.5958e-05 deg
peri 47.06970716458372 2.9866e-05 deg
M 178.6613004629918 1.6545e-05 deg
tp 2458046.510663105202
(2017-Oct-20.01066311)
8.6367e-05 TDB
period 1922.275055605941
5.26
1.2499e-05
3.422e-08
d
yr
n .1872780895481789 1.2177e-09 deg/d
Q 3.376192874906272 1.4635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2407  
   data-arc span      31674 days (86.72 yr)  
   first obs. used      1933-09-21  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41836  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:31:59  

Additional Information
 Earth MOID = 1.67612 au 
 Jupiter MOID = 2.01574 au 
 T_jup = 3.216 
[ 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 11.8   n/a MPO502167  
diameter diameter 17.336 km 0.242 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.117   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1485 Isa (1938 OB)          Discovered 1938-Jul-28 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 OB = 1933 SL 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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