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JPL Small-Body Database Browser
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91212 (1998 YQ7)
Classification: Main-belt Asteroid          SPK-ID: 2091212
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473346169748401 8.9815e-08  
a 2.326980179282394 1.0264e-08 au
q 1.984135445859777 2.1361e-07 au
i 27.02939882837406 7.416e-06 deg
node 21.49924496081432 8.4006e-06 deg
peri 147.7867448722407 1.9035e-05 deg
M 320.9909161348593 1.4243e-05 deg
tp 2459140.991711489200
(2020-Oct-18.49171149)
5.1401e-05 TDB
period 1296.544576923751
3.55
8.5782e-06
2.349e-08
d
yr
n .277661105069102 1.8371e-09 deg/d
Q 2.66982491270501 1.1776e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      7682 days (21.03 yr)  
   first obs. used      1998-12-24  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:01:08  

Additional Information
 Earth MOID = 1.00939 au 
 Jupiter MOID = 2.32739 au 
 T_jup = 3.414 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO359381  
diameter diameter 4.283 km 0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.151   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91212 (1998 YQ7)          Discovered 1998-Dec-24 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 YQ7 = 2001 RF79 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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