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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 
[ 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

[ 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 1.95423155296737 1.9542308439189 1.95423226201927 3.53980981985649 3.41517109798268 2421251.203319625 2.07001610290928 170.193308327187 20.9619452188159 79.0657195553899 2650546.79254078 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 04:36:17 2020-Aug-25 04:36
1975-Nov-22 02:53 < 00:01 Jupiter 1.92466245095789 1.92466200219009 1.92466289972557 3.83913306508287 3.72273621937752 2442738.619824699 0.792503059664884 86.8805264031181 19.8101539987382 89.2377865058341 2733197.72045538 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 04:36:17 2020-Aug-25 04:36
2034-Sep-23 15:04 < 00:01 Jupiter 1.9696348456571 1.96963430483207 1.96963538648225 4.11794035193685 4.01215054351331 2464229.127538807 0.492061951691063 59.7092216239235 20.6661993017292 -76.6335423872506 2816638.963357 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 04:36:17 2020-Aug-25 04:36
2130-Jun-16 17:33 00:03 Jupiter 1.94025104031505 1.9402504927371 1.94025158789675 3.5541280012279 3.42909896948476 2499193.230963754 2.54503634041815 225.107323084642 19.5701911479061 83.8371340949292 2505078.25825124 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 04:36:17 2020-Aug-25 04:36
2189-Apr-18 01:09 00:04 Jupiter 1.93523374065808 1.93523304556554 1.93523443576646 3.89702667495425 3.78304734018886 2520683.547694685 3.73602121208044 369.761419382263 19.5827435872428 -87.1697237266247 2668469.8112419 T 22 CATAB v2.0f-lin.ifort 2020-Aug-25 04:36:17 2020-Aug-25 04:36

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