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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217685694711769 4.2584e-08  
a 2.742716167093573 1.2734e-08 au
q 2.40873954296112 1.1571e-07 au
i 12.08490953610676 4.9482e-06 deg
node 179.4455422574449 1.6231e-05 deg
peri 47.83664914453875 2.6435e-05 deg
M 80.98674224785302 1.8863e-05 deg
tp 2458627.266037700169
(2019-May-23.76603770)
8.6952e-05 TDB
period 1659.089163220432
4.54
1.1554e-05
3.163e-08
d
yr
n .2169865297059802 1.5112e-09 deg/d
Q 3.076692791226027 1.4285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1069  
   data-arc span      9867 days (27.01 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:01:59  

Additional Information
 Earth MOID = 1.41923 au 
 Jupiter MOID = 1.9325 au 
 T_jup = 3.306 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456947.5 (2014-Oct-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1202177213124621 4.273e-08  
q 2.412761549628951 1.1581e-07 au
tp 2456967.730543112471
(2014-Nov-06.23054311)
8.9266e-05 TDB
node 179.5392622068584 1.6232e-05 deg
peri 47.78981665739914 2.662e-05 deg
i 12.0833228407388 4.9476e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1069  
   data-arc span      9867 days (27.01 yr)  
   first obs. used      1993-09-16  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53368  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:01:59  

Additional Information
 Jupiter MOID = 1.9325 au 
 T_jup = 3.306 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.82588643699732E-15 -4.926512141900117E-15 -1.815170140430667E-12 1.789439403473993E-14 -4.985794792055132E-13 -1.68864721243835E-15
q -4.926512141900117E-15 1.341201334057155E-14 4.810469112768259E-12 -4.806480309899145E-14 1.325430117376933E-12 5.622218597000169E-15
tp -1.815170140430667E-12 4.810469112768259E-12 7.968391888721938E-9 -3.483536032295684E-11 1.885729963582126E-9 -6.508992171589482E-12
node 1.789439403473993E-14 -4.806480309899145E-14 -3.483536032295684E-11 2.634939564320797E-10 -2.658254865978742E-10 -9.195311304029874E-12
peri -4.985794792055132E-13 1.325430117376933E-12 1.885729963582126E-9 -2.658254865978742E-10 7.086215016435305E-10 7.769602271711972E-12
i -1.68864721243835E-15 5.622218597000169E-15 -6.508992171589482E-12 -9.195311304029874E-12 7.769602271711972E-12 2.447840791397295E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1917-Jan-22 16:53 00:02 Jupiter 1.95423159375878 1.95423091042064 1.95423227709959 3.53980981108736 3.41517109154262 2421251.203483577 1.87375669264807 155.319427169668 20.5319211886091 78.8595595299135 2779864.64092245 T 23 CATAB v2.0f-lin.ifort 2020-Oct-22 18:02:21 2020-Oct-22 18:02
1975-Nov-22 02:53 < 00:01 Jupiter 1.92466244259088 1.92466199437547 1.92466289080629 3.83913322914047 3.72273638805071 2442738.619886826 0.734155639571955 82.2485498411414 19.6500145906751 89.4080013532471 2808600.42827644 T 23 CATAB v2.0f-lin.ifort 2020-Oct-22 18:02:21 2020-Oct-22 18:02
2034-Sep-23 15:04 < 00:01 Jupiter 1.96963487922577 1.96963435340303 1.96963540504862 4.11794067627741 4.01215087823263 2464229.127494484 0.417724709916388 52.2103307018771 20.3315772808716 -75.4395938234067 2842172.28630771 T 23 CATAB v2.0f-lin.ifort 2020-Oct-22 18:02:21 2020-Oct-22 18:02
2130-Jun-16 17:32 00:02 Jupiter 1.94025097219956 1.9402504712915 1.94025147310984 3.5541288146917 3.42909980813905 2499193.230737209 2.24870825543343 201.019886951416 18.8310405572433 84.3282007933356 2583416.74414851 T 23 CATAB v2.0f-lin.ifort 2020-Oct-22 18:02:21 2020-Oct-22 18:02
2189-Apr-18 01:08 00:03 Jupiter 1.93523379138099 1.93523313101799 1.93523445175565 3.8970276462667 3.78304834379839 2520683.547367981 3.3110964785385 327.950260397779 19.3304577488326 -87.0399224647315 2709385.89226143 T 23 CATAB v2.0f-lin.ifort 2020-Oct-22 18:02:21 2020-Oct-22 18:02

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