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22997 (1999 VT70)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022997
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02899848576823304 4.0532e-08  
a 3.241497826350475 2.1106e-08 au
q 3.147499297765292 1.2208e-07 au
i 15.41629353469484 5.3264e-06 deg
node 226.9166961858436 1.3258e-05 deg
peri 267.0835054294313 9.3858e-05 deg
M 143.539705402736 9.3411e-05 deg
tp 2458350.563307061104
(2018-Aug-20.06330706)
0.00055226 TDB
period 2131.655548543228
5.84
2.0819e-05
5.7e-08
d
yr
n .1688828198561554 1.6494e-09 deg/d
Q 3.335496354935657 2.1718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1357  
   data-arc span      9847 days (26.96 yr)  
   first obs. used      1993-10-12  
   last obs. used      2020-09-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:15:55  

Additional Information
 Earth MOID = 2.20516 au 
 Jupiter MOID = 1.74402 au 
 T_jup = 3.126 
[ 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 13.55   n/a E2021B10  
diameter diameter 8.392 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 40.2421 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.]
geometric albedo albedo 0.120   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22997 (1999 VT70)          Discovered 1999-Nov-04 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 VT70 = 1998 QO69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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