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185851 (2000 DP107)
Classification: Apollo [NEO, PHA]          SPK-ID: 2185851
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 248 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3766520494852913 1.0662e-08  
a 1.365269105116469 2.6745e-10 au
q .8510376985754016 1.4547e-08 au
i 8.671939788337966 1.5141e-06 deg
node 358.6756512979559 2.3479e-06 deg
peri 289.7822778160963 3.5744e-06 deg
M 38.22617178896811 6.9053e-07 deg
tp 2459334.629428556646
(2021-Apr-30.12942856)
1.1035e-06 TDB
period 582.6742432532975
1.60
1.7121e-07
4.687e-10
d
yr
n .6178409362836764 1.8155e-10 deg/d
Q 1.879500511657537 3.6818e-10 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 9.621632716655918E-15 6.344E-16
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      1370  
   # delay obs. used      21  
   # Doppler obs. used      2  
   data-arc span      7220 days (19.77 yr)  
   first obs. used      2000-02-29  
   last obs. used      2019-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .38665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-02 05:56:40  

Additional Information
 Earth MOID = .0147071 au 
 Jupiter MOID = 3.33546 au 
 T_jup = 4.749 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 18.21   n/a MPCxxxxx  
diameter diameter 0.863 km 0.043 Naidu et al. 2015, AJ 150, 54 Effective diameter of the primary
extent extent 0.992 x 0.938 x 0.964 km 0.05 x 0.05 x 0.05 Naidu et al. 2015, AJ 150, 54 Extents of the primary
GM GM 3.224e-8 km^3/s^2 3e-9 Naidu et al. 2015, AJ 150, 54  
bulk density density 1.365 g/cm^3 +/- 0.25 Naidu et al. 2015, AJ 150, 54 Porosity 55-65%.
rotation period rot_per 2.7754 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Kusnirak, P.; Hicks, M.; Holliday, B.; Warner, B. (2000) IAUC 7504; http://www.asu.cas.cz/~ppravec/2000DP107.htm]
[Yang, B.; Zhu, J.; Gao, J.; Zhang, G.T.; Zheng, X.Z. (2003) Planet. Space Sci. 51, 411-414.]
[Pravec, P.; et al. (2006) Icarus 181, 63-93.]
[Warner, B.D.; Stephens, R.D. (2009) Minor Planet Bull. 36, 62-63.]
[Warner, B.D. (2011) http://www.minorplanetobserver.com/PDO/PDOLightcurves.htm]
[Polishook, D. (2012) Minor Planet Bull. 39, 187-192.]
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bull. 39, 111-130.]
[Naidu, S.P.; Margo, J.-L.; Taylor, P.A.; Nolan, M.C.; et al. (2015) Astron. J. 150, A54.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]
pole direction pole 279, 55 degrees   10 degrees Naidu et al. 2015, AJ 150, 54  
geometric albedo albedo 0.137   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

185851 (2000 DP107)          Discovered 2000-Feb-29 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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