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JPL Small-Body Database Browser
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71217 (1999 YQ1)
Classification: Main-belt Asteroid          SPK-ID: 2071217
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1934209421319293 6.5609e-08  
a 2.53324775229787 9.48e-09 au
q 2.043264585394823 1.6936e-07 au
i 16.93792512745199 5.8847e-06 deg
node 195.4640379522249 1.2209e-05 deg
peri 205.4696317718069 1.5442e-05 deg
M 46.96314358089555 7.6735e-06 deg
tp 2458808.381324116536
(2019-Nov-20.88132412)
3.1262e-05 TDB
period 1472.702166943144
4.03
8.2668e-06
2.263e-08
d
yr
n .2444486115935065 1.3722e-09 deg/d
Q 3.023230919200916 1.1314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1014  
   data-arc span      9809 days (26.86 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:22:30  

Additional Information
 Earth MOID = 1.05991 au 
 Jupiter MOID = 2.44318 au 
 T_jup = 3.364 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457414.5 (2016-Jan-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1926412039581359 6.5377e-08  
q 2.0450263389647 1.6855e-07 au
tp 2457331.753223059190
(2015-Nov-05.25322306)
3.1731e-05 TDB
node 195.5169812330676 1.2189e-05 deg
peri 204.6808208009573 1.5475e-05 deg
i 16.95000184562572 5.8845e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1014  
   data-arc span      9809 days (26.86 yr)  
   first obs. used      1993-03-21  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47375  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:22:30  

Additional Information
 Jupiter MOID = 2.44318 au 
 T_jup = 3.364 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.274136991366637E-15 -1.100989481135057E-14 8.672240772964664E-14 5.176133436533783E-14 -3.757349734235474E-15 -1.345568170359911E-14
q -1.100989481135057E-14 2.840982946984311E-14 -2.503830886182334E-13 -1.335509893965323E-13 3.74284575604699E-15 3.509688577887306E-14
tp 8.672240772964664E-14 -2.503830886182334E-13 1.006826200697227E-9 1.640615448702799E-12 3.134801336618973E-10 7.864158432058516E-13
node 5.176133436533783E-14 -1.335509893965323E-13 1.640615448702799E-12 1.485658360252148E-10 -1.411813833768098E-10 3.966734620209425E-11
peri -3.757349734235474E-15 3.74284575604699E-15 3.134801336618973E-10 -1.411813833768098E-10 2.394649054031993E-10 -3.792774668866475E-11
i -1.345568170359911E-14 3.509688577887306E-14 7.864158432058516E-13 3.966734620209425E-11 -3.792774668866475E-11 3.462775428394786E-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 15.6   n/a MPO449449  
diameter diameter 3.833 km 1.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.054   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

71217 (1999 YQ1)          Discovered 1999-Dec-16 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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