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190315 (1997 VY4)
Classification: Main-belt Asteroid          SPK-ID: 2190315
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2485398509642636 5.5048e-08  
a 2.42642939656547 1.0055e-08 au
q 1.82336499596778 1.292e-07 au
i 13.88218568638206 4.6607e-06 deg
node 47.96146208066222 1.9073e-05 deg
peri 5.791456032385488 2.2888e-05 deg
M 36.35846449382012 1.0069e-05 deg
tp 2459061.071052819784
(2020-Jul-30.57105282)
3.8513e-05 TDB
period 1380.542926762199
3.78
8.5816e-06
2.35e-08
d
yr
n .2607669729215241 1.621e-09 deg/d
Q 3.02949379716316 1.2554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      550  
   data-arc span      8532 days (23.36 yr)  
   first obs. used      1997-10-25  
   last obs. used      2021-03-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:08  

Additional Information
 Earth MOID = .834094 au 
 Jupiter MOID = 2.36464 au 
 T_jup = 3.429 
[ 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 16.1   n/a MPO449945  
diameter diameter 3.821 km 0.658 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190315 (1997 VY4)          Discovered 1997-Nov-05 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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