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48644 (1995 UG7)
Classification: Main-belt Asteroid          SPK-ID: 2048644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281034406719779 4.2434e-08  
a 2.43551443561898 1.3788e-08 au
q 2.123516656609918 9.9805e-08 au
i 6.578861946045371 4.8557e-06 deg
node 34.58813111410768 3.6334e-05 deg
peri 277.7144378376968 4.2605e-05 deg
M 235.6226192514847 2.654e-05 deg
tp 2459480.148836102785
(2021-Sep-22.64883610)
0.0001048 TDB
period 1388.303724984689
3.80
1.1789e-05
3.228e-08
d
yr
n .2593092516581487 2.202e-09 deg/d
Q 2.747512214628041 1.5554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      10341 days (28.31 yr)  
   first obs. used      1991-09-15  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:33:50  

Additional Information
 Earth MOID = 1.12189 au 
 Jupiter MOID = 2.5151 au 
 T_jup = 3.485 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456685.5 (2014-Jan-28.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1290271843359234 4.2553e-08  
q 2.121382670952897 1.0026e-07 au
tp 2456701.015731453723
(2014-Feb-12.51573145)
9.1302e-05 TDB
node 34.65047864605526 3.6376e-05 deg
peri 277.2186962714074 4.2528e-05 deg
i 6.576337803817276 4.8524e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1295  
   data-arc span      10341 days (28.31 yr)  
   first obs. used      1991-09-15  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50813  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:33:50  

Additional Information
 Jupiter MOID = 2.5151 au 
 T_jup = 3.485 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.81076632489632E-15 -4.23943084790723E-15 1.499454365404688E-12 -1.192038729721694E-15 3.208560228446426E-13 1.365263775240201E-15
q -4.23943084790723E-15 1.005202645876473E-14 -3.162473284401134E-12 2.380237379879786E-15 -6.691388199549976E-13 -2.949279838964575E-15
tp 1.499454365404688E-12 -3.162473284401134E-12 8.336112458425618E-9 3.559674416367025E-12 2.024970691575217E-9 1.858289217911141E-12
node -1.192038729721694E-15 2.380237379879786E-15 3.559674416367025E-12 1.323201273222149E-9 -1.313065224763512E-9 -1.408064105904877E-11
peri 3.208560228446426E-13 -6.691388199549976E-13 2.024970691575217E-9 -1.313065224763512E-9 1.80859694674115E-9 1.440045791488884E-11
i 1.365263775240201E-15 -2.949279838964575E-15 1.858289217911141E-12 -1.408064105904877E-11 1.440045791488884E-11 2.354613620765063E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO359066  
diameter diameter 2.612 km 0.122 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.28 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.410   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48644 (1995 UG7)          Discovered 1995-Oct-27 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 UG7 = 1991 RC17 = 1999 XK120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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