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37838 (1998 DF)
Classification: Main-belt Asteroid          SPK-ID: 2037838
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155247144791001 2.8987e-08  
a 2.313545824900234 7.6919e-09 au
q 2.04627410404432 6.6988e-08 au
i 4.690091339106855 3.7486e-06 deg
node 132.2030071970251 4.2731e-05 deg
peri 301.1254973953226 4.6668e-05 deg
M 182.0763002315737 1.8567e-05 deg
tp 2459635.753235947931
(2022-Feb-25.25323595)
6.738e-05 TDB
period 1285.332787250402
3.52
6.41e-06
1.755e-08
d
yr
n .2800831065471503 1.3968e-09 deg/d
Q 2.580817545756148 8.5805e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1721  
   data-arc span      8327 days (22.80 yr)  
   first obs. used      1996-08-09  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 04:39:19  

Additional Information
 Earth MOID = 1.06588 au 
 Jupiter MOID = 2.63891 au 
 T_jup = 3.569 
[ 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 14.7   n/a MPO365697  
diameter diameter 2.916 km 0.687 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.274   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

37838 (1998 DF)          Discovered 1998-Feb-17 by Antonini, P. at Bedoin
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DF = 1996 RO3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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