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85781 (1998 VP2)
Classification: Main-belt Asteroid          SPK-ID: 2085781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882177308338367 2.7647e-08  
a 2.467015633268958 9.9648e-09 au
q 2.002679548843474 6.781e-08 au
i 6.963264113718164 3.1717e-06 deg
node 233.7258637917417 3.8593e-05 deg
peri 198.0445159283012 4.1057e-05 deg
M 188.8243571132674 1.6398e-05 deg
tp 2459673.470064547361
(2022-Apr-03.97006455)
6.7095e-05 TDB
period 1415.325329885633
3.87
8.5752e-06
2.348e-08
d
yr
n .2543584802718752 1.5411e-09 deg/d
Q 2.931351717694442 1.184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      7975 days (21.83 yr)  
   first obs. used      1998-11-09  
   last obs. used      2020-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:49  

Additional Information
 Earth MOID = 1.01836 au 
 Jupiter MOID = 2.36662 au 
 T_jup = 3.452 
[ 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 15.1   n/a MPO267963  
rotation period rot_per 73.5006 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

85781 (1998 VP2)          Discovered 1998-Nov-10 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 VP2 = 2002 RC107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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