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78142 (2002 NR18)
Classification: Main-belt Asteroid          SPK-ID: 2078142
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1146146919943685 3.3673e-08  
a 3.160127372656624 2.05e-08 au
q 2.797930347176612 1.1397e-07 au
i 4.208043783951574 4.1397e-06 deg
node 226.9121626612977 5.3744e-05 deg
peri 223.8021395865044 5.7313e-05 deg
M 352.4533890830091 2.1049e-05 deg
tp 2459439.513498489387
(2021-Aug-13.01349849)
0.00012012 TDB
period 2051.895828008819
5.62
1.9966e-05
5.466e-08
d
yr
n .1754475032727894 1.7072e-09 deg/d
Q 3.522324398136636 2.285e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1228  
   data-arc span      8131 days (22.26 yr)  
   first obs. used      1998-12-15  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54445  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:05:16  

Additional Information
 Earth MOID = 1.81643 au 
 Jupiter MOID = 1.68762 au 
 T_jup = 3.191 
[ 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 14.04   n/a E2021B10  
diameter diameter 8.165 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78142 (2002 NR18)          Discovered 2002-Jul-09 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
1900-Jun-09 17:46 00:03 Jupiter 1.8485098211341 1.84850863068141 1.84851101158973 2.66331660582579 2.4853203290413 2415180.240468234 3.44872573336194 148.857564522765 14.3911908432136 75.658186849512 2535401.00749671 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
1975-May-06 10:29 00:01 Jupiter 1.96465629489312 1.9646555792451 1.96465701054171 3.86471931335774 3.75150571423813 2442538.937135420 1.38857283094417 81.6298324213745 18.4980429553116 74.0111618331521 3246553.27934494 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
1985-Dec-04 01:22 00:01 Jupiter 1.78627019819329 1.78626969060727 1.78627070577921 2.55188330291738 2.35875781233195 2446403.557169364 1.10234179117318 60.1105952995136 11.6273898550321 -88.9754545870441 2811160.24481676 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
1996-Jul-06 03:36 < 00:01 Jupiter 1.7384627691736 1.73846243400914 1.73846310433806 2.28347848220828 2.05908328924091 2450270.650008699 0.701161245549158 54.4520359684386 12.3961940059401 -86.3450584674878 3443432.91776682 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2007-Feb-23 23:00 < 00:01 Jupiter 1.87584415617091 1.87584377390213 1.87584453843958 2.74519745063529 2.57546596714243 2454155.458613643 0.348086814887519 47.3356805810032 12.0673732481059 86.0777005330313 3283971.16419124 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2082-Jan-20 03:19 00:02 Jupiter 1.92649982526944 1.92649921335569 1.92650043718417 3.66518479262025 3.54319647983322 2481514.638110609 1.91573387863014 102.302817255805 17.1135958379053 81.6051782559632 3264629.21083385 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2092-Aug-19 10:15 00:02 Jupiter 1.75647253877606 1.75647202997187 1.75647304758044 2.40972967786435 2.20053142075216 2485378.926856196 2.32465874530511 97.9602014528952 7.75129974325284 -85.6364643437716 2771894.08390838 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2103-Mar-23 11:22 00:03 Jupiter 1.73952753367057 1.73952711374815 1.73952795359289 2.2666459341785 2.04054656034016 2489245.973885985 2.61349843051829 54.7480990395396 13.013614295928 -87.0055315450568 2883830.25497189 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2113-Nov-11 04:40 00:03 Jupiter 1.90306229592635 1.90306129375153 1.90306329810322 2.83373455370532 2.67205606080912 2493131.694489718 2.89452859678259 129.406189946138 15.6585153531848 74.9923155035099 2876110.4933897 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2188-Oct-12 12:37 00:05 Jupiter 1.88999449956832 1.88999296219712 1.88999603695273 3.48720391478635 3.3562283022989 2520496.025353579 5.23735933862588 276.662714532527 16.8595597785583 79.8958785969951 3048080.58753204 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05
2199-May-12 16:29 00:06 Jupiter 1.73135103844145 1.73135026215834 1.73135181473086 2.29319661795133 2.06888812468231 2524360.186885653 5.73150282267189 225.858001797556 5.89634245435882 -84.6547609501054 2719786.3273865 T 30 CATAB v2.0g-lin.ifort 2021-Jul-08 23:05:20 2021-Jul-08 23:05

Alternate Designations
 2002 NR18 = 1998 XL82 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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