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74548 (1999 JM64)
Classification: Main-belt Asteroid          SPK-ID: 2074548
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 .3288775227067173 5.243e-08  
a 3.127130293460107 2.2426e-08 au
q 2.098687429365817 1.7265e-07 au
i 21.10570430012114 6.6217e-06 deg
node 239.1998918739374 1.3342e-05 deg
peri 259.4953562604177 1.7409e-05 deg
M 354.9679032107115 9.248e-06 deg
tp 2459028.733445245992
(2020-Jun-28.23344525)
5.1999e-05 TDB
period 2019.841969294576
5.53
2.1728e-05
5.949e-08
d
yr
n .178231765391888 1.9173e-09 deg/d
Q 4.155573157554397 2.9802e-08 au
  Orbit Determination Parameters
   # obs. used (total)      807  
   data-arc span      8121 days (22.23 yr)  
   first obs. used      1997-11-07  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49002  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:18:40  

Additional Information
 Earth MOID = 1.22494 au 
 Jupiter MOID = 1.7881 au 
 T_jup = 3.030 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457322.5 (2015-Oct-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3299819922038047 5.2458e-08  
q 2.093199972201005 1.7266e-07 au
tp 2457010.980935486070
(2014-Dec-19.48093549)
4.8037e-05 TDB
node 239.2207052185171 1.3345e-05 deg
peri 259.5515641213827 1.7377e-05 deg
i 21.11297070641319 6.6238e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      807  
   data-arc span      8121 days (22.23 yr)  
   first obs. used      1997-11-07  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49002  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:18:40  

Additional Information
 Jupiter MOID = 1.7881 au 
 T_jup = 3.030 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.751862479951842E-15 -9.033477131940097E-15 1.083020460125482E-13 -6.61636511977772E-16 1.517786353683236E-13 -1.401172366122167E-14
q -9.033477131940097E-15 2.980998906390458E-14 -3.770232261358723E-13 1.377843221944399E-15 -4.912534471461223E-13 4.808918563356358E-14
tp 1.083020460125482E-13 -3.770232261358723E-13 2.307550807495556E-9 -3.497526349798377E-12 5.389020810790859E-10 -4.587748187714618E-12
node -6.61636511977772E-16 1.377843221944399E-15 -3.497526349798377E-12 1.780991380179682E-10 -1.662077013081117E-10 -2.561463331946563E-12
peri 1.517786353683236E-13 -4.912534471461223E-13 5.389020810790859E-10 -1.662077013081117E-10 3.019706283208085E-10 9.85716560161721E-13
i -1.401172366122167E-14 4.808918563356358E-14 -4.587748187714618E-12 -2.561463331946563E-12 9.85716560161721E-13 4.387413871598464E-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 13.7   n/a MPO280227  
diameter diameter 9.538 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74548 (1999 JM64)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20040415/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
1961-Jul-13 17:01 00:02 Jupiter 1.88970669937319 1.88970499235496 1.88970840639422 5.45294123751649 5.37011255932016 2437494.209369876 1.52843147096152 185.41107940008 57.3608539834153 -70.4354496470495 1467557.14700373 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
1963-Apr-15 16:07 00:02 Jupiter 1.9170241384795 1.91702296260942 1.91702531435046 4.76086541306235 4.66713560045169 2438135.171202509 2.24048134712423 289.971348733837 52.8577157014873 -85.7051648165034 1062115.38725658 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
1972-Mar-29 04:09 00:01 Jupiter 1.8873888954722 1.88738777063276 1.88739002031613 5.66350609520796 5.58370317581113 2441405.672755406 1.14834394873051 203.763769667103 35.3942354476706 78.1381819838185 2115622.58511719 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
2046-Oct-21 19:21 < 00:01 Jupiter 1.87299319974967 1.87299225400803 1.87299414549184 5.65714188139336 5.57662940730566 2468640.306266629 0.967275146872708 206.765619768124 43.0071697023003 86.613049914604 1697228.69145429 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
2055-Sep-04 04:16 00:01 Jupiter 1.81256112306576 1.8125601182391 1.81256212789469 5.33231812056875 5.24394913422266 2471879.677929285 1.38729299357515 214.818308569823 40.9080936977226 83.4227765853163 1787130.23152997 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
2130-Apr-08 04:41 00:03 Jupiter 1.92560655349668 1.92560445329396 1.92560865378193 6.31814709466644 6.2481386443019 2499123.695063978 3.34102579480134 688.087157976938 37.0174598597757 82.1302979131887 2136309.1129598 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
2139-Feb-13 11:42 00:04 Jupiter 1.8351952345484 1.83519384727705 1.83519662184091 5.04451013176599 4.95217077430368 2502356.987378949 3.85464988545469 482.439617734265 48.8320829979464 -84.3050379857328 1404479.47473196 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18
2140-Oct-12 02:15 00:06 Jupiter 1.94755102655774 1.94754818264327 1.94755387051771 4.50535004023692 4.4077596955202 2502963.593766247 5.86468331341232 564.823607152386 65.3641896520651 -75.0575059526171 793953.555554325 T 23 CATAB v2.0f-lin.ifort 2020-Feb-23 17:18:53 2020-Feb-23 17:18

Alternate Designations
 1999 JM64 = 2001 QO174 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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