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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 348 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4669326020875426 3.7637e-08  
a 1.079991843359815 1.1508e-09 au
q .5757084417064947 4.0534e-08 au
i 16.09661370719467 3.7332e-06 deg
node 212.9105593902926 9.7751e-06 deg
peri 325.2557870145037 1.0669e-05 deg
M 178.9424990119247 8.971e-06 deg
tp 2458996.730050649933
(2020-May-27.23005065)		 1.0076e-05 TDB
period 409.9483474919819
1.12		 6.5522e-07
1.794e-09		 d
yr
n .8781594125270651 1.4036e-09 deg/d
Q 1.584275245013135 1.6881e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      17976 days (49.22 yr)  
   first obs. used      1971-10-26  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42674  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:24:47  

Additional Information
 Earth MOID = .156379 au 
 Jupiter MOID = 3.40676 au 
 T_jup = 5.592 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457820.5 (2017-Mar-08.0) TDB
Reference: JPL 348 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4669759455100542 3.7681e-08  
q .5756709237932007 4.0582e-08 au
tp 2457766.825616226509
(2017-Jan-13.32561623)		 9.3845e-06 TDB
node 212.9287695722075 9.7763e-06 deg
peri 325.2524565680501 1.0664e-05 deg
i 16.09512229448567 3.7328e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      17976 days (49.22 yr)  
   first obs. used      1971-10-26  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42674  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:24:47  

Additional Information
 Jupiter MOID = 3.40676 au 
 T_jup = 5.592 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.419845930024282E-15 -1.528980848722565E-15 1.451975056983301E-13 -2.736277773898981E-14 8.648979640066377E-14 1.407653175272429E-14
q -1.528980848722565E-15 1.646872421339422E-15 -1.553012210747903E-13 2.889659719005538E-14 -9.23823296478163E-14 -1.490323620233115E-14
tp 1.451975056983301E-13 -1.553012210747903E-13 8.806870183694312E-11 -5.751285287980819E-12 4.60328492224164E-11 -1.189596917769499E-12
node -2.736277773898981E-14 2.889659719005538E-14 -5.751285287980819E-12 9.557640002788252E-11 -9.282505698544454E-11 -1.355260422669586E-11
peri 8.648979640066377E-14 -9.23823296478163E-14 4.60328492224164E-11 -9.282505698544454E-11 1.13724013253203E-10 1.189585347255844E-11
i 1.407653175272429E-14 -1.490323620233115E-14 -1.189596917769499E-12 -1.355260422669586E-11 1.189585347255844E-11 1.393361477179776E-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 16.73   n/a E2021B10  
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. 2020-October); 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, 458-503.]
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 27-40.]
[Warner, B.D.; Stephens, R.D. (2020) Minor Planet Bull. 47, 23-34.]
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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