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3862 Agekian (1972 KM)
Classification: Main-belt Asteroid          SPK-ID: 2003862
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2485866393883742 1.4779e-08  
a 2.542942297409622 9.7175e-09 au
q 1.910800817538012 4.0154e-08 au
i 8.989052055173831 1.1121e-06 deg
node 106.5894993013378 5.6582e-06 deg
peri 180.2445093977196 7.1005e-06 deg
M 25.04811624524719 7.5803e-06 deg
tp 2459293.443413213985
(2021-Mar-19.94341321)
3.0913e-05 TDB
period 1481.164127462285
4.06
8.4901e-06
2.324e-08
d
yr
n .24305206514608 1.3932e-09 deg/d
Q 3.175083777281231 1.2133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2591  
   data-arc span      17936 days (49.11 yr)  
   first obs. used      1972-05-18  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41941  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:46:16  

Additional Information
 Earth MOID = .894089 au 
 Jupiter MOID = 2.0079 au 
 T_jup = 3.384 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456685.5 (2014-Jan-28.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2499479142983989 1.4865e-08  
q 1.905612597255522 4.0324e-08 au
tp 2456330.401024576575
(2013-Feb-06.90102458)
2.7369e-05 TDB
node 106.681047572693 5.6459e-06 deg
peri 179.8748193948883 7.048e-06 deg
i 9.002502483745809 1.1136e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2591  
   data-arc span      17936 days (49.11 yr)  
   first obs. used      1972-05-18  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41941  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-07 22:46:16  

Additional Information
 Jupiter MOID = 2.0079 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.209796950810188E-16 -5.904214550749152E-16 -1.960461614940042E-13 7.390340854647176E-15 -3.879231994590585E-14 -5.753846746472949E-16
q -5.904214550749152E-16 1.626056384018018E-15 4.778976424269255E-13 -1.986898697437745E-14 1.011722339504987E-13 1.285639571423945E-15
tp -1.960461614940042E-13 4.778976424269255E-13 7.490788155882122E-10 1.943950279083332E-12 1.215279885739544E-10 -9.133303549693529E-13
node 7.390340854647176E-15 -1.986898697437745E-14 1.943950279083332E-12 3.18759933267255E-11 -2.99927564174717E-11 2.454680213341548E-12
peri -3.879231994590585E-14 1.011722339504987E-13 1.215279885739544E-10 -2.99927564174717E-11 4.967413914856006E-11 -2.333845900105176E-12
i -5.753846746472949E-16 1.285639571423945E-15 -9.133303549693529E-13 2.454680213341548E-12 -2.333845900105176E-12 1.240038606640569E-12

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 13.03   n/a E2021B10  
diameter diameter 6.488 km 0.322 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.349   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3862 Agekian (1972 KM)          Discovered 1972-May-18 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
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
1941-Dec-31 20:17 00:01 Jupiter 1.99838191324217 1.9983815474887 1.99838227899621 2.1513794343283 1.94440868299283 2430360.345118310 1.26105705631778 67.4559959511813 8.81815226712514 -80.9380456777226 7174894.41709953 T 37 CATAB v2.0g-lin.ifort 2021-Jul-07 22:47:21 2021-Jul-07 22:47
1954-Apr-13 00:09 < 00:01 Jupiter 1.97581314998086 1.97581301310418 1.97581328685777 2.18521676170718 1.9793385225932 2434845.506334571 0.983453130469736 58.7675065791206 6.06995025660319 -88.3476416158165 7345333.98117388 T 37 CATAB v2.0g-lin.ifort 2021-Jul-07 22:47:21 2021-Jul-07 22:47
2120-Feb-02 01:00 00:01 Jupiter 1.99576977054845 1.99576944007966 1.99577010101723 2.21908147653143 2.01878793864126 2495405.541523999 1.47095969481654 45.5788932054689 14.8493300393984 -87.538213773612 6753523.16197272 T 37 CATAB v2.0g-lin.ifort 2021-Jul-07 22:47:21 2021-Jul-07 22:47
2132-May-13 10:46 00:02 Jupiter 1.98058685121181 1.98058667289372 1.98058702953181 2.22923766368631 2.02834311111633 2499889.948428224 1.67307023211012 130.194075759536 5.83540964204489 -88.6110126994265 7412874.57306372 T 37 CATAB v2.0g-lin.ifort 2021-Jul-07 22:47:21 2021-Jul-07 22:47

Alternate Designations
 1972 KM = 1980 KB2 = 1980 KC1 = 1984 KX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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