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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1154715059838292 4.6133e-08  
a 3.02658642430798 1.4973e-08 au
q 2.677101931902925 1.4115e-07 au
i 8.923190692304816 4.5787e-06 deg
node 297.5274009760178 3.026e-05 deg
peri 47.10446899602628 3.4861e-05 deg
M 103.7565254807865 1.7562e-05 deg
tp 2458046.204994109817
(2017-Oct-19.70499411)
9.3523e-05 TDB
period 1923.215924933972
5.27
1.4271e-05
3.907e-08
d
yr
n .1871864699811903 1.389e-09 deg/d
Q 3.376070916713035 1.6701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1906  
   data-arc span      31261 days (85.59 yr)  
   first obs. used      1933-09-21  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45707  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:10:10  

Additional Information
 Earth MOID = 1.67731 au 
 Jupiter MOID = 2.01284 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 11.7   n/a MPO253370  
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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