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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218538774847229 4.2252e-08  
a 2.741471374809008 1.1759e-08 au
q 2.407412457775157 1.1429e-07 au
i 12.08845228498173 4.7974e-06 deg
node 179.4394342780715 1.4693e-05 deg
peri 47.62776803624401 2.4906e-05 deg
M 124.6233881439557 1.8227e-05 deg
tp 2458626.553973333975
(2019-May-23.05397333)
8.3908e-05 TDB
period 1657.959815384702
4.54
1.0668e-05
2.921e-08
d
yr
n .2171343338116238 1.3971e-09 deg/d
Q 3.07553029184286 1.3192e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      9963 days (27.28 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-12-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52629  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:11:39  

Additional Information
 Earth MOID = 1.41678 au 
 Jupiter MOID = 1.93198 au 
 T_jup = 3.307 
[ 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 14.77   n/a MPCxxxxx  
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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