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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461622624244434 2.1583e-08  
a 3.12264991155156 1.669e-08 au
q 2.666236335719696 6.9502e-08 au
i 10.11328069910712 1.2244e-06 deg
node 312.2426369890442 2.1435e-06 deg
peri 18.51938274533236 7.8191e-06 deg
M 124.7553837253291 1.0973e-05 deg
tp 2458502.042205822492
(2019-Jan-18.54220582)
5.9585e-05 TDB
period 2015.502645220528
5.52
1.6159e-05
4.424e-08
d
yr
n .178615493685254 1.432e-09 deg/d
Q 3.579063487383424 1.9129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2382  
   data-arc span      16138 days (44.18 yr)  
   first obs. used      1977-01-12  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:09:31  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1945-Jan-23 11:43 00:02 Jupiter 1.97800498774162 1.97800413407818 1.97800584142103 3.03609661631236 2.89161571353984 2431478.988246428 1.71379418443911 297.406656417766 6.75925496930691 -81.5103474839205 7475951.01416597 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
1955-Apr-19 06:37 00:01 Jupiter 1.76332688402939 1.76332672510928 1.76332704295121 3.32617070135119 3.17847478501978 2435216.776030693 1.37118427633942 132.18687208644 5.2103664197312 -87.8663607496371 11840957.7825275 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
2027-Feb-14 09:00 < 00:01 Jupiter 1.78863848161347 1.78863831263147 1.78863865059608 3.24487320955548 3.09549477148816 2461450.875032092 0.293355464533657 72.5272762353249 3.65252076818461 -84.7133170201433 9781624.14587776 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
2037-May-06 03:36 < 00:01 Jupiter 1.90832661050545 1.90832633283303 1.90832688817808 3.40172561226194 3.26864265894046 2465184.650216856 0.584055624701563 38.6989851536527 6.32001028952098 -72.3667522936752 12492100.9293786 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
2098-Dec-17 17:13 00:02 Jupiter 1.89452414186735 1.89452337468198 1.8945249090678 3.01234883116739 2.86008142962697 2487690.217334461 1.99686470620727 286.453296199206 9.22073909365795 -81.6702782750253 7683732.36886064 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
2109-Mar-14 15:18 00:02 Jupiter 1.79676149914635 1.79676096081081 1.79676203749068 3.40278035097774 3.26130061177794 2491429.137576937 2.22551545704729 207.796985358589 4.09869542347242 -82.9715942423021 12923851.674614 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
2181-Jan-11 03:17 00:04 Jupiter 1.7734642631003 1.77346404015752 1.77346448605093 3.30800130123898 3.16032507644675 2517664.636858102 3.82373167824589 285.714593015655 8.62869518454777 87.533746571859 10601870.2633211 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
2191-Mar-30 01:45 00:04 Jupiter 1.99464940221601 1.99464752092215 1.99465128351917 3.64113198594269 3.52257682825336 2521394.572825409 4.36946747451778 239.351022657441 7.94654846658689 -68.3489090690511 10083693.6890418 T 44 CATAB v2.0g-lin.ifort 2021-May-03 21:10:32 2021-May-03 21:10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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