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JPL Small-Body Database Browser
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48772 (1997 MR9)
Classification: Main-belt Asteroid          SPK-ID: 2048772
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217685582801664 4.432e-08  
a 2.742716176295494 1.5518e-08 au
q 2.408739581736301 1.229e-07 au
i 12.08490674904959 5.1719e-06 deg
node 179.4455259585682 1.8632e-05 deg
peri 47.83665669811179 2.8751e-05 deg
M 80.98674672873419 1.9207e-05 deg
tp 2458627.266015171343
(2019-May-23.76601517)		 8.8891e-05 TDB
period 1659.089171569896
4.54		 1.4081e-05
3.855e-08		 d
yr
n .2169865286139826 1.8416e-09 deg/d
Q 3.076692770854688 1.7408e-08 au
   Orbit Determination Parameters
   # obs. used (total)      927  
   data-arc span      9473 days (25.94 yr)  
   first obs. used      1993-09-16  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55119  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:13:18  

Additional Information
 Earth MOID = 1.41923 au 
 Jupiter MOID = 1.9325 au 
 T_jup = 3.306 
[ show covariance matrix ]

[ 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 MPO299292  
diameter diameter 3.111 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.154   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

48772 (1997 MR9)          Discovered 1997-Jun-27 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 MR9 = 2000 AC194 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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