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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217685629747568 4.342e-08  
a 2.742716172285544 1.4314e-08 au
q 2.408739565338708 1.1928e-07 au
i 12.08490851778064 5.0511e-06 deg
node 179.4455344274697 1.7862e-05 deg
peri 47.83665218384188 2.7935e-05 deg
M 80.98674468187467 1.9078e-05 deg
tp 2458627.266025422983
(2019-May-23.76602542)
8.8152e-05 TDB
period 1659.089167931424
4.54
1.2988e-05
3.556e-08
d
yr
n .2169865290898458 1.6986e-09 deg/d
Q 3.076692779232381 1.6057e-08 au
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      9818 days (26.88 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:36:07  

Additional Information
 Earth MOID = 1.41923 au 
 Jupiter MOID = 1.9325 au 
 T_jup = 3.306 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456633.5 (2013-Dec-07.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1202043489165198 4.3673e-08  
q 2.413353142585648 1.1943e-07 au
tp 2456967.206872399212
(2014-Nov-05.70687240)
9.1548e-05 TDB
node 179.5432822787167 1.7865e-05 deg
peri 47.63486496998531 2.811e-05 deg
i 12.08165079791367 5.0502e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      9818 days (26.88 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:36:07  

Additional Information
 Jupiter MOID = 1.9325 au 
 T_jup = 3.306 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.907311825251932E-15 -5.187912811108116E-15 -1.645017993094043E-12 1.596222540872507E-14 -4.503393187546482E-13 -2.572265670676648E-15
q -5.187912811108116E-15 1.426436296969931E-14 4.227660650316641E-12 -4.320630800254386E-14 1.16120656112323E-12 8.278127933315683E-15
tp -1.645017993094043E-12 4.227660650316641E-12 8.381126975906482E-9 -3.00302968939415E-11 1.993766021302422E-9 -7.108890403946556E-12
node 1.596222540872507E-14 -4.320630800254386E-14 -3.00302968939415E-11 3.191556167291666E-10 -3.189646420975245E-10 -1.707684009808349E-12
peri -4.503393187546482E-13 1.16120656112323E-12 1.993766021302422E-9 -3.189646420975245E-10 7.901644033874457E-10 2.831475400383882E-13
i -2.572265670676648E-15 8.278127933315683E-15 -7.108890403946556E-12 -1.707684009808349E-12 2.831475400383882E-13 2.550468070980946E-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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