Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
2237 Melnikov (1938 TB)
Classification: Main-belt Asteroid          SPK-ID: 2002237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217757023532212 2.1207e-08  
a 3.14092703263311 1.3558e-08 au
q 2.456968110875061 6.9049e-08 au
i 2.400769284306271 3.0297e-07 deg
node 118.47949828225 1.8956e-05 deg
peri 266.1359575018115 1.9833e-05 deg
M 227.6870561612521 6.235e-06 deg
tp 2459947.782873964950
(2023-Jan-03.28287396)
3.8121e-05 TDB
period 2033.223861720161
5.57
1.3165e-05
3.604e-08
d
yr
n .1770587129030792 1.1465e-09 deg/d
Q 3.824885954391159 1.6511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2780  
   data-arc span      30069 days (82.32 yr)  
   first obs. used      1938-09-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:31:13  

Additional Information
 Earth MOID = 1.46105 au 
 Jupiter MOID = 1.63373 au 
 T_jup = 3.172 
[ 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 12.08   n/a E2021B10  
diameter diameter 21.353 km 0.498 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 31.725 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.074   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2237 Melnikov (1938 TB)          Discovered 1938-Oct-02 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
1948-Jun-03 06:37 00:02 Jupiter 1.94264603723521 1.9426453093671 1.94264676510309 2.69688064944344 2.53004655036587 2432705.775624589 1.62257459594887 19.689676671583 3.31654386201235 42.9873604985948 5249620.29214713 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
1958-Dec-25 01:53 00:01 Jupiter 1.70325624366852 1.70325586400349 1.70325662333307 1.47439664190587 1.08593437393749 2436562.578759462 1.31000816630011 88.2664819490151 28.6928646838775 9.0340104360959 2533165.5031338 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
1969-Jul-30 03:30 < 00:01 Jupiter 1.68407717624369 1.68407692893945 1.68407742354822 1.36279041015609 0.922647725193505 2440432.645592778 0.990680077317442 131.859393001754 46.7211058427927 -34.0047536178503 4637312.21366818 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
1980-Feb-26 04:21 < 00:01 Jupiter 1.90367771181188 1.90367739444953 1.90367802917422 2.29619096394687 2.09346907913238 2444295.681527655 0.724188492330939 31.7397927027298 2.43100358477514 -89.6588166497256 6639105.3122359 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2054-Aug-23 23:25 < 00:01 Jupiter 1.79568373984765 1.79568342962968 1.79568405006543 1.92716887252816 1.66450639647001 2471503.475716084 0.849559783879951 17.2181453680171 4.76913528573531 -5.2982891747698 2841539.33349224 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2065-Mar-20 21:11 00:01 Jupiter 1.6575353299919 1.65753511831895 1.65753554166466 1.27987390457772 0.784888984161403 2475365.382523490 1.11348218642891 163.520672701026 66.6283882263789 -4.22878937355306 3476495.73263516 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2075-Oct-23 07:13 00:01 Jupiter 1.78637279754759 1.78637228367235 1.78637331142384 1.73703724398198 1.43839594049237 2479233.800914804 1.43724104061333 96.2460230415549 13.35381087212 -71.2279132829562 5883021.72768262 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2150-Apr-26 06:19 00:03 Jupiter 1.91033526520782 1.91033406705614 1.91033646335896 2.62170755342467 2.44674714400728 2506446.762873242 3.03831584970215 44.7927511931449 3.66210700377361 68.3321822661837 5102136.00101193 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2160-Nov-14 15:15 00:03 Jupiter 1.68251754985082 1.68251692097842 1.68251817872149 1.42884941090619 1.01723120052464 2510302.135638505 3.24459722898438 228.864998427461 27.9247729058339 7.29570141753292 1562753.3350069 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2171-Jun-20 06:00 00:04 Jupiter 1.6894666519255 1.68946588045766 1.68946742340246 1.37273222288733 0.93898019449086 2514171.749861523 3.51368249086062 357.418094855156 53.0541000301681 -50.6326812616632 4864343.68328545 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32
2182-Jan-15 05:57 00:04 Jupiter 1.93349832239946 1.93349667262336 1.93349997217941 2.3820330820063 2.19041689872558 2518033.747575630 3.87472367149207 174.348416009427 2.61347222182883 84.5233885033997 7339974.93156685 T 41 CATAB v2.0f-lin.ifort 2021-Apr-12 13:32:24 2021-Apr-12 13:32

Alternate Designations
 1938 TB = 1949 SO1 = 1972 TB2 = 1977 RU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-22 03:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin