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JPL Small-Body Database Browser
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13802 (1998 WR3)
Classification: Main-belt Asteroid          SPK-ID: 2013802
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1530595954053278 2.7576e-08  
a 2.255430146406129 7.6076e-09 au
q 1.910214920732228 6.2953e-08 au
i 7.893160497146191 3.5358e-06 deg
node 58.28273786057665 2.3876e-05 deg
peri 224.3326691345221 2.7158e-05 deg
M 252.1241235643091 1.4542e-05 deg
tp 2459371.235637077353
(2021-Jun-05.73563708)
5.0624e-05 TDB
period 1237.20736978124
3.39
6.2597e-06
1.714e-08
d
yr
n .2909778981220055 1.4722e-09 deg/d
Q 2.60064537208003 8.772e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      13977 days (38.27 yr)  
   first obs. used      1981-10-30  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46839  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:45:21  

Additional Information
 Earth MOID = .902944 au 
 Jupiter MOID = 2.53346 au 
 T_jup = 3.596 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456896.5 (2014-Aug-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534830327033071 2.7537e-08  
q 1.909299146556381 6.2889e-08 au
tp 2456896.837897232096
(2014-Aug-27.33789723)
4.7441e-05 TDB
node 58.3159979567679 2.3886e-05 deg
peri 224.3630566372729 2.7156e-05 deg
i 7.892136785366546 3.535e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      13977 days (38.27 yr)  
   first obs. used      1981-10-30  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46839  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:45:21  

Additional Information
 Jupiter MOID = 2.53346 au 
 T_jup = 3.596 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.58261704323189E-16 -1.722762560130823E-15 -9.570932450708174E-14 -8.153390115928657E-16 -2.283220283912292E-14 8.518897957971655E-16
q -1.722762560130823E-15 3.955034479307837E-15 2.517612347688563E-13 1.424196752723589E-15 6.091030283289059E-14 -1.803558668760125E-15
tp -9.570932450708174E-14 2.517612347688563E-13 2.250663565660835E-9 -3.193567284974936E-12 6.223534747544445E-10 9.397207115625115E-13
node -8.153390115928657E-16 1.424196752723589E-15 -3.193567284974936E-12 5.70542966569943E-10 -5.658014431426422E-10 -1.441379594188722E-11
peri -2.283220283912292E-14 6.091030283289059E-14 6.223534747544445E-10 -5.658014431426422E-10 7.374546237456018E-10 1.454700607954032E-11
i 8.518897957971655E-16 -1.803558668760125E-15 9.397207115625115E-13 -1.441379594188722E-11 1.454700607954032E-11 1.249619494696204E-11

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 13.8   n/a MPO347634  
diameter diameter 4.130 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.376   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13802 (1998 WR3)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WR3 = 1981 UD7 = 1997 JK16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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