2021 TK10
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	5 Mar 2026	32.9	2.731 AU	3.019 AU	18h43m	-19°42'	63.8°	19.0°

The interactive orbit chart above shows the body's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below. (Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)

The orbital elements of 2021 TK10 are:

            e (Eccentricity)                : 0.5135835
            a (Semimajor axis)              : 1.9056152
            i (Inclination)                 : 4.08407
            Ω (Longitude of ascending node) : 196.56217
            ω (Argument of perihelion)      : 225.95684
            M (Mean anomaly)                : 189.42056
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 242.44621
            B (Latitude of perihelion)      : -2.93449
            P (Orbital period in years)     : 2.63            
        

The light curve chart below shows the estimated development of the minor planet's magnitude.

The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.

The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-03-05 00:00 UT   18 43 44.9   -19 42 33     3.019    2.731   63.8   19.0   267   32.9 
2026-03-05 04:53 UT   18 44 00.2   -19 42 03     3.016    2.730   63.9   19.0   267   32.9 
2026-03-06 00:00 UT   18 45 00.2   -19 40 05     3.004    2.728   64.5   19.2   267   32.9 
2026-03-07 00:00 UT   18 46 14.9   -19 37 34     2.989    2.726   65.2   19.3   267   32.9 
2026-03-08 00:00 UT   18 47 29.2   -19 35 01     2.973    2.723   65.9   19.4   267   32.9 
2026-03-09 00:00 UT   18 48 42.9   -19 32 25     2.958    2.721   66.6   19.6   267   32.9 
2026-03-10 00:00 UT   18 49 56.0   -19 29 47     2.942    2.718   67.3   19.7   266   32.9 
2026-03-11 00:00 UT   18 51 08.6   -19 27 07     2.926    2.716   68.0   19.8   266   32.9 
2026-03-12 00:00 UT   18 52 20.6   -19 24 24     2.911    2.713   68.7   20.0   266   32.9 
2026-03-13 00:00 UT   18 53 32.0   -19 21 39     2.895    2.711   69.5   20.1   266   32.9 
2026-03-14 00:00 UT   18 54 42.8   -19 18 51     2.879    2.708   70.2   20.2   266   32.9 
2026-03-15 00:00 UT   18 55 53.0   -19 16 02     2.863    2.706   70.9   20.3   266   32.9 
2026-03-16 00:00 UT   18 57 02.6   -19 13 10     2.847    2.703   71.6   20.4   266   32.8 
2026-03-17 00:00 UT   18 58 11.6   -19 10 16     2.831    2.700   72.3   20.6   265   32.8 
2026-03-18 00:00 UT   18 59 19.9   -19 07 20     2.814    2.698   73.0   20.7   265   32.8 
2026-03-19 00:00 UT   19 00 27.5   -19 04 22     2.798    2.695   73.8   20.8   265   32.8 
2026-03-20 00:00 UT   19 01 34.5   -19 01 23     2.782    2.692   74.5   20.9   265   32.8 
2026-03-21 00:00 UT   19 02 40.8   -18 58 21     2.765    2.690   75.2   21.0   265   32.8 
2026-03-22 00:00 UT   19 03 46.3   -18 55 18     2.749    2.687   76.0   21.1   265   32.8 
2026-03-23 00:00 UT   19 04 51.2   -18 52 13     2.732    2.684   76.7   21.2   264   32.8 
2026-03-24 00:00 UT   19 05 55.3   -18 49 07     2.716    2.681   77.4   21.3   264   32.8 
2026-03-25 00:00 UT   19 06 58.8   -18 45 59     2.699    2.679   78.1   21.4   264   32.7 
2026-03-26 00:00 UT   19 08 01.4   -18 42 49     2.683    2.676   78.9   21.5   264   32.7 
2026-03-27 00:00 UT   19 09 03.3   -18 39 38     2.666    2.673   79.6   21.5   264   32.7 
2026-03-28 00:00 UT   19 10 04.5   -18 36 26     2.649    2.670   80.4   21.6   264   32.7 
2026-03-29 00:00 UT   19 11 04.8   -18 33 12     2.633    2.667   81.1   21.7   264   32.7 
2026-03-30 00:00 UT   19 12 04.4   -18 29 57     2.616    2.664   81.9   21.8   263   32.7 
2026-03-31 00:00 UT   19 13 03.2   -18 26 41     2.599    2.661   82.6   21.8   263   32.7 
2026-04-01 00:00 UT   19 14 01.1   -18 23 24     2.582    2.659   83.4   21.9   263   32.6 
2026-04-02 00:00 UT   19 14 58.2   -18 20 06     2.565    2.656   84.1   22.0   263   32.6 
2026-04-03 00:00 UT   19 15 54.5   -18 16 47     2.548    2.653   84.9   22.0   263   32.6 
2026-04-04 00:00 UT   19 16 49.9   -18 13 27     2.531    2.650   85.6   22.1   263   32.6 

    Terminology:
            
    delta:  distance between minor planet and earth in AU
    radius: distance between minor planet and sun in AU
    magn:   magnitude (brightness) estimate    
    ra:     right ascension in hours (24h = 360deg)
    dec:    declination in degrees
    elong:  elongation in degrees (angle sun-earth-minor planet)    
    phase:  phase angle in degrees (angle sun-minor planet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km
    

Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.