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JPL Small-Body Database Browser
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4745 Nancymarie (1989 NG1)
Classification: Main-belt Asteroid          SPK-ID: 2004745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06093573203713223 4.1013e-08  
a 3.015958818071363 1.7251e-08 au
q 2.83217915969834 1.2613e-07 au
i 8.687990704739562 4.8209e-06 deg
node 238.7534808020808 3.3897e-05 deg
peri 66.64398670384263 5.8923e-05 deg
M 314.6495590019677 5.0729e-05 deg
tp 2459241.499172476498
(2021-Jan-26.99917248)
0.00027032 TDB
period 1913.095003757601
5.24
1.6414e-05
4.494e-08
d
yr
n .1881767498701878 1.6145e-09 deg/d
Q 3.199738476444386 1.8302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1850  
   data-arc span      16302 days (44.63 yr)  
   first obs. used      1974-09-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48428  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 00:40:48  

Additional Information
 Earth MOID = 1.83109 au 
 Jupiter MOID = 1.94484 au 
 T_jup = 3.228 
[ 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 12.1   n/a MPO395043  
diameter diameter 12.870 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.170   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

4745 Nancymarie (1989 NG1)          Discovered 1989-Jul-09 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1989 NG1 = 1974 SY3 = 1979 RF1 = 1980 WY1 = 1990 VJ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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