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22971 (1999 VY8)
Classification: Main-belt Asteroid          SPK-ID: 2022971
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2275830402819445 4.2928e-08  
a 2.409902430161559 1.0283e-08 au
q 1.861449508322545 1.0316e-07 au
i 10.21365496998367 3.439e-06 deg
node 91.02407320164392 2.4091e-05 deg
peri 283.9388158335888 2.4834e-05 deg
M 238.7403191818733 8.0917e-06 deg
tp 2459660.768799670742
(2022-Mar-22.26879967)		 3.2518e-05 TDB
period 1366.462180697887
3.74		 8.7458e-06
2.394e-08		 d
yr
n .2634540531638708 1.6862e-09 deg/d
Q 2.958355352000573 1.2623e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1614  
   data-arc span      12520 days (34.28 yr)  
   first obs. used      1986-03-04  
   last obs. used      2020-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50365  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:15:14  

Additional Information
 Earth MOID = .893211 au 
 Jupiter MOID = 2.57411 au 
 T_jup = 3.464 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.29   n/a E2021B10  
diameter diameter 7.070 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.078   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22971 (1999 VY8)          Discovered 1999-Nov-09 by Juels, C. W. at Fountain Hills
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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