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2709 Sagan (1982 FH)
Classification: Main-belt Asteroid          SPK-ID: 2002709
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06943286198748111 1.7785e-08  
a 2.195614762205983 5.1499e-09 au
q 2.043166945444058 3.9063e-08 au
i 2.732368435694736 1.0348e-06 deg
node 241.1150529334456 1.1984e-05 deg
peri 307.9156236083563 1.9479e-05 deg
M 323.2460554093504 1.3273e-05 deg
tp 2459321.820473183670
(2021-Apr-17.32047318)
4.3882e-05 TDB
period 1188.317902542421
3.25
4.1809e-06
1.145e-08
d
yr
n .3029492354106385 1.0659e-09 deg/d
Q 2.348062578967907 5.5075e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2822  
   data-arc span      22695 days (62.14 yr)  
   first obs. used      1959-02-03  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4387  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:27:47  

Additional Information
 Earth MOID = 1.04363 au 
 Jupiter MOID = 2.61352 au 
 T_jup = 3.664 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456955.5 (2014-Oct-25.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .069229504758863 1.7814e-08  
q 2.043248598844277 3.9123e-08 au
tp 2456945.939753023614
(2014-Oct-15.43975302)
4.3333e-05 TDB
node 241.1462028503796 1.199e-05 deg
peri 308.0595358774995 1.9496e-05 deg
i 2.731529956816641 1.0349e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2822  
   data-arc span      22695 days (62.14 yr)  
   first obs. used      1959-02-03  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4387  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:27:47  

Additional Information
 Jupiter MOID = 2.61352 au 
 T_jup = 3.664 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.173213565529548E-16 -6.917255092680074E-16 9.490431319411043E-14 -4.182110239130137E-15 5.858156419830771E-15 -3.1356345939383E-18
q -6.917255092680074E-16 1.530639413243046E-15 -2.134575827859786E-13 9.679022916262756E-15 -1.44083784537502E-14 -5.310577432832436E-18
tp 9.490431319411043E-14 -2.134575827859786E-13 1.877767610208539E-9 -9.380303580099155E-11 6.723928707680388E-10 2.145936241725331E-12
node -4.182110239130137E-15 9.679022916262756E-15 -9.380303580099155E-11 1.437718216561277E-10 -1.711533326166789E-10 -5.940201288209054E-12
peri 5.858156419830771E-15 -1.44083784537502E-14 6.723928707680388E-10 -1.711533326166789E-10 3.801015840215197E-10 6.679458441687858E-12
i -3.1356345939383E-18 -5.310577432832436E-18 2.145936241725331E-12 -5.940201288209054E-12 6.679458441687858E-12 1.071050747467974E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.23   n/a E2021B10  
diameter diameter 6.559 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.2564 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Higgins, D.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Brinsfield, J.W.; Allen, B.; Warner, B.D. (2008) Minor Planet Bull. 35, 123-126.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
[Oey, J.; Inasaridze, R.Y.; Kvaratskhelia, O.I.; Ayvazian, V.; et al. (2013) Minor Planet Bull. 40, 169-172.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2016) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.259   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
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)

2709 Sagan (1982 FH)          Discovered 1982-Mar-21 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

Alternate Designations
 1982 FH = 1951 WF1 = 1959 CC = 1959 EA1 = 1964 WT = 1982 FE2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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