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70953 (1999 XY1)
Classification: Main-belt Asteroid          SPK-ID: 2070953
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279257928213455 6.5226e-08  
a 2.522175929867032 7.9644e-09 au
q 1.947306981417174 1.6599e-07 au
i 18.3744066545401 5.9118e-06 deg
node 94.17144071529806 1.4363e-05 deg
peri 296.5822277811458 1.7577e-05 deg
M 61.98225581875962 9.0585e-06 deg
tp 2458748.601042959162
(2019-Sep-22.10104296)
3.6911e-05 TDB
period 1463.057827386388
4.01
6.9299e-06
1.897e-08
d
yr
n .2460599938439243 1.1655e-09 deg/d
Q 3.097044878316889 9.7796e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1156  
   data-arc span      10193 days (27.91 yr)  
   first obs. used      1992-03-06  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47943  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:18:10  

Additional Information
 Earth MOID = 1.02454 au 
 Jupiter MOID = 2.46722 au 
 T_jup = 3.350 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457166.5 (2015-May-24.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279260815325856 6.485e-08  
q 1.947435111162675 1.6475e-07 au
tp 2457282.380776531364
(2015-Sep-16.88077653)
3.7865e-05 TDB
node 94.34179143150239 1.4409e-05 deg
peri 295.8539603839281 1.764e-05 deg
i 18.3505077525504 5.902e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1156  
   data-arc span      10193 days (27.91 yr)  
   first obs. used      1992-03-06  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47943  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:18:10  

Additional Information
 Jupiter MOID = 2.46722 au 
 T_jup = 3.350 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.205486248515123E-15 -1.067692329830393E-14 1.662108111552948E-12 -7.911812105618013E-15 4.226264759151881E-13 -4.37875200653589E-14
q -1.067692329830393E-14 2.714214871679264E-14 -4.241764153148288E-12 1.979090522893832E-14 -1.078494068859938E-12 1.119324983491636E-13
tp 1.662108111552948E-12 -4.241764153148288E-12 1.43377684476749E-9 -1.091796961206117E-12 4.085366982391182E-10 -2.139049925415686E-11
node -7.911812105618013E-15 1.979090522893832E-14 -1.091796961206117E-12 2.076258801925594E-10 -1.967563705428653E-10 -5.596701629322675E-11
peri 4.226264759151881E-13 -1.078494068859938E-12 4.085366982391182E-10 -1.967563705428653E-10 3.111543261479039E-10 4.741682460788993E-11
i -4.37875200653589E-14 1.119324983491636E-13 -2.139049925415686E-11 -5.596701629322675E-11 4.741682460788993E-11 3.483368794392234E-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 14.8   n/a MPO359239  
diameter diameter 3.280 km 0.599 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.173   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70953 (1999 XY1)          Discovered 1999-Dec-03 by Juels, C. W. at Fountain Hills
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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