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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142500119151959 3.3738e-08  
a 3.158933209066277 2.093e-08 au
q 2.798025052291147 1.1397e-07 au
i 4.208752078050558 4.1431e-06 deg
node 226.912200741737 5.4959e-05 deg
peri 223.8684064835902 5.8527e-05 deg
M 282.8697561047348 2.1222e-05 deg
tp 2459439.870906318257
(2021-Aug-13.37090632)
0.00012249 TDB
period 2050.732868021985
5.61
2.0381e-05
5.58e-08
d
yr
n .1755469986430923 1.7447e-09 deg/d
Q 3.519841365841406 2.3322e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      8007 days (21.92 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54893  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:06:07  

Additional Information
 Earth MOID = 1.81649 au 
 Jupiter MOID = 1.6894 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 14.0   n/a MPO449492  
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 17:47 00:04 Jupiter 1.84850973248429 1.8485085260982 1.84851093887354 2.66331645814333 2.48532016092152 2415180.240757967 3.51096140764239 151.562951426144 14.5941752303363 75.7125092940383 2528486.39944025 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
1975-May-06 10:29 00:01 Jupiter 1.96465630813548 1.96465558115606 1.96465703511557 3.86471931703418 3.75150571816526 2442538.937149550 1.41138716455732 82.8624307759228 18.619367616593 73.9090828944475 3233669.7681173 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
1985-Dec-04 01:22 00:01 Jupiter 1.78627020343257 1.78626968612015 1.78627072074489 2.55188332580091 2.35875783656817 2446403.557143215 1.1207342557445 60.7012151794231 11.7417309117965 -89.1973861861577 2773703.42813393 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
1996-Jul-06 03:36 < 00:01 Jupiter 1.73846276084406 1.73846242338915 1.73846309829897 2.28347868721361 2.05908351414644 2450270.649996275 0.71242182021955 54.5268392744721 12.6723017564793 -86.2064127717742 3418997.00810344 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2007-Feb-23 23:00 < 00:01 Jupiter 1.87584413270309 1.87584374999394 1.87584451541225 2.74519740243128 2.57546591259967 2454155.458625861 0.352195170605637 48.0747777964208 12.11136896764 86.2538489418426 3279228.50863823 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2082-Jan-20 03:19 00:02 Jupiter 1.92649992749855 1.92649931173104 1.92650054326704 3.66518538917783 3.54319710282881 2481514.638283947 1.95236182172291 104.214768641591 17.1836972725749 81.6975521193361 3261553.23256438 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2092-Aug-19 10:15 00:02 Jupiter 1.75647257845618 1.75647206952199 1.75647308739057 2.40973010543024 2.2005318927055 2485378.927096365 2.36760447907512 99.5930070433735 7.75577215470707 -85.6461181823262 2759136.98780546 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2103-Mar-23 11:23 00:03 Jupiter 1.73952742701735 1.73952699576511 1.73952785826949 2.26664577764234 2.04054637051051 2489245.974185030 2.66113595217601 54.8830285052942 13.3139913438487 -86.9163453292066 2808122.7430189 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2113-Nov-11 04:41 00:03 Jupiter 1.90306205163324 1.90306103123048 1.90306307203816 2.83373387392086 2.67205531759033 2493131.694856397 2.9468124408613 131.631432180418 15.880467343031 74.9753172209462 2860828.44322515 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2188-Oct-12 12:38 00:05 Jupiter 1.8899949680892 1.88999340909668 1.88999652709537 3.48720743806593 3.35623199543713 2520496.026407252 5.33390307704848 281.759938222458 16.9589217365825 79.9353694524499 3042130.16551544 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06
2199-May-12 16:31 00:06 Jupiter 1.73135123068188 1.73135045053359 1.73135201083667 2.29319869623966 2.06889045324795 2524360.188419155 5.83606140451924 229.947674065756 5.90139075199319 -84.664152102992 2701323.77276901 T 26 CATAB v2.0f-lin.ifort 2020-Dec-17 22:06:09 2020-Dec-17 22:06

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