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JPL Small-Body Database Browser
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1865 Cerberus (1971 UA)
Classification: Apollo [NEO]          SPK-ID: 2001865
[ 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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 309 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4668530872323081 4.4611e-08  
a 1.079993935235791 1.4348e-09 au
q .5757954323787924 4.8267e-08 au
i 16.09595153284522 5.0331e-06 deg
node 212.9201811283403 1.0192e-05 deg
peri 325.2455054774687 1.1588e-05 deg
M 3.320344196136011 1.4132e-05 deg
tp 2458996.718962302606
(2020-May-27.21896230)		 1.6088e-05 TDB
period 409.9495385586368
1.12		 8.1695e-07
2.237e-09		 d
yr
n .8781568611242813 1.75e-09 deg/d
Q 1.584192438092789 2.1047e-09 au
   Orbit Determination Parameters
   # obs. used (total)      1805  
   data-arc span      17622 days (48.25 yr)  
   first obs. used      1971-10-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-24 05:56:25  

Additional Information
 Earth MOID = .156542 au 
 Jupiter MOID = 3.40788 au 
 T_jup = 5.592 
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Orbital Elements at Epoch 2457445.5 (2016-Feb-27.0) TDB
Reference: JPL 309 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4669665660895506 4.4647e-08  
q .5756957363525328 4.8306e-08 au
tp 2457356.837266326098
(2015-Nov-30.33726633)		 1.4034e-05 TDB
node 212.9320501850382 1.0194e-05 deg
peri 325.2393883320509 1.1579e-05 deg
i 16.09448472018163 5.0331e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1805  
   data-arc span      17622 days (48.25 yr)  
   first obs. used      1971-10-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44449  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-24 05:56:25  

Additional Information
 Jupiter MOID = 3.40788 au 
 T_jup = 5.592 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.993317116915273E-15 -2.156434510942748E-15 -2.350039162608733E-14 -8.115459857333589E-14 8.616351407751599E-14 8.575282923487357E-14
q -2.156434510942748E-15 2.333505584789134E-15 3.149331216554712E-14 8.748843308101343E-14 -9.06406029171223E-14 -9.324866591878463E-14
tp -2.350039162608733E-14 3.149331216554712E-14 1.969585447284055E-10 3.602854723504314E-12 7.936296511057501E-11 -2.053543140900786E-11
node -8.115459857333589E-14 8.748843308101343E-14 3.602854723504314E-12 1.039102983896383E-10 -9.87170538355211E-11 -2.195025828274595E-11
peri 8.616351407751599E-14 -9.06406029171223E-14 7.936296511057501E-11 -9.87170538355211E-11 1.340809519736169E-10 1.392988013512552E-11
i 8.575282923487357E-14 -9.324866591878463E-14 -2.053543140900786E-11 -2.195025828274595E-11 1.392988013512552E-11 2.533182785762949E-11

[ 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 16.7   n/a MPO502171  
diameter diameter 1.2 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 6.8039 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm]
[Sarneczky, K.; Szabo, G.; Kiss, L.L. (1999) Astron. Astrophys. Suppl. Ser. 137, 363-368.]
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Durech, J.; Vokrouhlicky, D.; Baransky, A.R.; Breiter, S.; et al. (2012) Astron. Astrophys. 547, A10.]
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bull. 39, 111-130.]
[Hanus, J.; Delbo, M.; Durech, J.; Ali-Lagoa, V. (2015) Icarus 256, 101-116.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46-4, in press.]
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 27-40.]
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 47-1, in progress. (NEAs) http://www.planetarysciences.org/lightcurves.html]
geometric albedo albedo 0.22   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.790   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.30, mean=9.85, max.=11.41) deg.
U-B UB 0.442   0.081 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=8.30, mean=9.85, max.=11.41) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
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)

1865 Cerberus (1971 UA)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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