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85797 (1998 VD49)
Classification: Main-belt Asteroid          SPK-ID: 2085797
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828298325239227 3.8318e-08  
a 2.389253599518918 1.0997e-08 au
q 1.952426764061695 9.181e-08 au
i 3.318285910755089 4.4034e-06 deg
node 110.2915776811026 7.639e-05 deg
peri 303.7943190086415 7.7726e-05 deg
M 297.1828979261162 1.8035e-05 deg
tp 2459235.878720036306
(2021-Jan-21.37872004)
6.8648e-05 TDB
period 1348.937413785905
3.69
9.3131e-06
2.55e-08
d
yr
n .2668767255773787 1.8425e-09 deg/d
Q 2.826080434976141 1.3008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      15610 days (42.74 yr)  
   first obs. used      1976-12-22  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60204  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:54:06  

Additional Information
 Earth MOID = .966228 au 
 Jupiter MOID = 2.52859 au 
 T_jup = 3.508 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456950.5 (2014-Oct-20.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184518982208659 3.853e-08  
q 1.947815461849479 9.2595e-08 au
tp 2456536.740622917670
(2013-Sep-01.24062292)
5.7009e-05 TDB
node 110.3412623105571 7.6546e-05 deg
peri 303.4200827241281 7.7838e-05 deg
i 3.31597624859996 4.3995e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      15610 days (42.74 yr)  
   first obs. used      1976-12-22  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60204  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:54:06  

Additional Information
 Jupiter MOID = 2.52859 au 
 T_jup = 3.508 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.484588602326206E-15 -3.551292864784775E-15 5.500273197273529E-14 2.765846421806538E-15 -7.872946822055849E-15 4.643444782689793E-16
q -3.551292864784775E-15 8.57380796887192E-15 1.095148100746251E-13 -7.267640798512176E-15 8.06948124069248E-14 -1.082565764005867E-15
tp 5.500273197273529E-14 1.095148100746251E-13 3.250023350799713E-9 -4.712282110015263E-12 8.245710864276419E-10 -2.590293977047352E-13
node 2.765846421806538E-15 -7.267640798512176E-15 -4.712282110015263E-12 5.859289597345583E-9 -5.850380328134634E-9 3.886786817654298E-12
peri -7.872946822055849E-15 8.06948124069248E-14 8.245710864276419E-10 -5.850380328134634E-9 6.058694904039168E-9 -3.957355125199851E-12
i 4.643444782689793E-16 -1.082565764005867E-15 -2.590293977047352E-13 3.886786817654298E-12 -3.957355125199851E-12 1.935525379788931E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO436375  
diameter diameter 2.522 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.160   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85797 (1998 VD49)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 VD49 = 1976 YD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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