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48828 (1997 YU)
Classification: Main-belt Asteroid          SPK-ID: 2048828
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2036880371060335 4.1182e-08  
a 3.129264408979232 1.9133e-08 au
q 2.491870683928481 1.3239e-07 au
i 1.879456478040713 4.2425e-06 deg
node 107.4654247958174 0.00016764 deg
peri 305.16305653 0.00016804 deg
M 48.71606330163875 1.293e-05 deg
tp 2458726.890291622265
(2019-Aug-31.39029162)
7.1464e-05 TDB
period 2021.909989033767
5.54
1.8544e-05
5.077e-08
d
yr
n .1780494690429009 1.633e-09 deg/d
Q 3.766658134029984 2.3031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      8520 days (23.33 yr)  
   first obs. used      1996-09-07  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:35:19  

Additional Information
 Earth MOID = 1.5036 au 
 Jupiter MOID = 1.61082 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456458.5 (2013-Jun-15.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198989113769571 4.1064e-08  
q 2.508511275469759 1.3116e-07 au
tp 2456705.917981715408
(2014-Feb-17.41798172)
6.7683e-05 TDB
node 107.5126109364419 0.00016728 deg
peri 305.58529708347 0.0001677 deg
i 1.879681557230045 4.2448e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      8520 days (23.33 yr)  
   first obs. used      1996-09-07  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:35:19  

Additional Information
 Jupiter MOID = 1.61082 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.686271122288084E-15 -5.349967983488768E-15 -7.429195458229955E-13 -3.845004452487003E-15 -1.545719072853611E-13 -2.776629854811478E-16
q -5.349967983488768E-15 1.720379387712383E-14 2.473936898026018E-12 1.322052830321187E-14 5.041354396340041E-13 1.009259560470113E-15
tp -7.429195458229955E-13 2.473936898026018E-12 4.581049393391168E-9 -6.585832310822057E-13 8.566115557251504E-10 1.179421605128335E-13
node -3.845004452487003E-15 1.322052830321187E-14 -6.585832310822057E-13 2.798384854802118E-8 -2.796845059855733E-8 1.083015931963493E-10
peri -1.545719072853611E-13 5.041354396340041E-13 8.566115557251504E-10 -2.796845059855733E-8 2.812478965817639E-8 -1.082107562644097E-10
i -2.776629854811478E-16 1.009259560470113E-15 1.179421605128335E-13 1.083015931963493E-10 -1.082107562644097E-10 1.801795783225463E-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 14.1   n/a MPO412507  
diameter diameter 8.141 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48828 (1997 YU)          Discovered 1997-Dec-20 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 YU = 1996 RV21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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