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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456409.5 (2013-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201988726852751 4.478e-08  
q 2.415320653000895 1.2354e-07 au
tp 2456965.775733590830
(2014-Nov-04.27573359)
9.299e-05 TDB
node 179.6020313670095 1.8641e-05 deg
peri 47.17650233871313 2.8888e-05 deg
i 12.07652039946137 5.1698e-06 deg
  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
 Jupiter MOID = 1.9325 au 
 T_jup = 3.306 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.005286201230646E-15 -5.499458848668668E-15 -1.51281119540294E-12 1.330865276571963E-14 -4.102109991809606E-13 -3.938353056539843E-15
q -5.499458848668668E-15 1.526221880642567E-14 3.78503514014521E-12 -3.569926716086907E-14 1.028591509702827E-12 1.113782947553275E-14
tp -1.51281119540294E-12 3.78503514014521E-12 8.647051795891139E-9 -2.589201744848082E-11 2.060597966840581E-9 -6.353072161374339E-12
node 1.330865276571963E-14 -3.569926716086907E-14 -2.589201744848082E-11 3.474823640528235E-10 -3.457548048997246E-10 4.137246786503423E-12
peri -4.102109991809606E-13 1.028591509702827E-12 2.060597966840581E-9 -3.457548048997246E-10 8.345315107202512E-10 -5.264689663423E-12
i -3.938353056539843E-15 1.113782947553275E-14 -6.353072161374339E-12 4.137246786503423E-12 -5.264689663423E-12 2.672676786753597E-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 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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