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3696 Herald (1980 OF)
Classification: Main-belt Asteroid          SPK-ID: 2003696
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461622445741598 4.3427e-08  
a 3.122649912654962 1.8218e-08 au
q 2.666236392402009 1.3155e-07 au
i 10.11328032563255 4.2902e-06 deg
node 312.2426574547458 2.2062e-05 deg
peri 18.51934923227673 2.5738e-05 deg
M 124.7553952326431 1.476e-05 deg
tp 2458502.042141027227
(2019-Jan-18.54214103)
8.1443e-05 TDB
period 2015.502646288809
5.52
1.7638e-05
4.829e-08
d
yr
n .1786154935905821 1.5631e-09 deg/d
Q 3.579063432907915 2.0881e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2310  
   data-arc span      16080 days (44.02 yr)  
   first obs. used      1977-01-12  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:12:35  

Additional Information
 Earth MOID = 1.65524 au 
 Jupiter MOID = 1.77239 au 
 T_jup = 3.175 
[ 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 12.49   n/a E2021B10  
diameter diameter 16.300 km 0.332 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.088   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3696 Herald (1980 OF)          Discovered 1980-Jul-17 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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