2021 DT
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	26 Jun 2026	27.6	1.375 AU	1.026 AU	00h41m	-00°12'	84.6°	47.4°

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 DT are:

            e (Eccentricity)                : 0.3428554
            a (Semimajor axis)              : 1.3830938
            i (Inclination)                 : 4.90806
            Ω (Longitude of ascending node) : 2.60830
            ω (Argument of perihelion)      : 210.08091
            M (Mean anomaly)                : 297.95131
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 32.59801
            B (Latitude of perihelion)      : -2.45778
            P (Orbital period in years)     : 1.63            
        

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
2026-06-26 00:00 UT   00 41 26.8   +00 12 30     1.026    1.375   84.6   47.4   247   27.6 
2026-06-26 00:45 UT   00 41 29.5   +00 12 10     1.026    1.376   84.7   47.4   247   27.6 
2026-06-27 00:00 UT   00 42 52.8   +00 01 59     1.023    1.381   85.2   47.2   247   27.6 
2026-06-28 00:00 UT   00 44 17.2   +00 08 23     1.020    1.386   85.8   47.0   247   27.6 
2026-06-29 00:00 UT   00 45 40.1   +00 18 35     1.016    1.391   86.3   46.8   247   27.6 
2026-06-30 00:00 UT   00 47 01.4   +00 28 37     1.013    1.396   86.9   46.7   247   27.6 
2026-07-01 00:00 UT   00 48 21.1   +00 38 30     1.009    1.400   87.5   46.5   247   27.6 
2026-07-02 00:00 UT   00 49 39.2   +00 48 13     1.005    1.405   88.1   46.3   247   27.5 
2026-07-03 00:00 UT   00 50 55.7   +00 57 46     1.002    1.410   88.7   46.1   247   27.5 
2026-07-04 00:00 UT   00 52 10.5   +01 07 09     0.998    1.415   89.3   45.9   247   27.5 
2026-07-05 00:00 UT   00 53 23.6   +01 16 21     0.994    1.420   89.9   45.7   247   27.5 
2026-07-06 00:00 UT   00 54 35.0   +01 25 24     0.990    1.425   90.5   45.5   247   27.5 
2026-07-07 00:00 UT   00 55 44.6   +01 34 15     0.986    1.430   91.1   45.3   247   27.5 
2026-07-08 00:00 UT   00 56 52.5   +01 42 57     0.982    1.435   91.7   45.1   247   27.5 
2026-07-09 00:00 UT   00 57 58.6   +01 51 27     0.977    1.439   92.4   44.9   247   27.5 
2026-07-10 00:00 UT   00 59 02.8   +01 59 47     0.973    1.444   93.0   44.7   248   27.5 
2026-07-11 00:00 UT   01 00 05.1   +02 07 56     0.969    1.449   93.7   44.4   248   27.5 
2026-07-12 00:00 UT   01 01 05.6   +02 15 53     0.964    1.454   94.4   44.2   248   27.5 
2026-07-13 00:00 UT   01 02 04.1   +02 23 39     0.960    1.458   95.0   44.0   248   27.5 
2026-07-14 00:00 UT   01 03 00.6   +02 31 14     0.956    1.463   95.7   43.7   248   27.5 
2026-07-15 00:00 UT   01 03 55.1   +02 38 38     0.951    1.468   96.4   43.5   248   27.4 
2026-07-16 00:00 UT   01 04 47.5   +02 45 50     0.946    1.472   97.1   43.2   248   27.4 
2026-07-17 00:00 UT   01 05 37.9   +02 52 50     0.942    1.477   97.9   43.0   248   27.4 
2026-07-18 00:00 UT   01 06 26.2   +02 59 38     0.937    1.482   98.6   42.7   248   27.4 
2026-07-19 00:00 UT   01 07 12.3   +03 06 14     0.932    1.486   99.3   42.4   248   27.4 
2026-07-20 00:00 UT   01 07 56.2   +03 12 39     0.928    1.491  100.1   42.2   248   27.4 
2026-07-21 00:00 UT   01 08 37.9   +03 18 51     0.923    1.495  100.8   41.9   248   27.4 
2026-07-22 00:00 UT   01 09 17.4   +03 24 51     0.918    1.500  101.6   41.6   248   27.4 
2026-07-23 00:00 UT   01 09 54.6   +03 30 39     0.913    1.504  102.3   41.3   248   27.3 
2026-07-24 00:00 UT   01 10 29.4   +03 36 14     0.908    1.509  103.1   41.0   249   27.3 
2026-07-25 00:00 UT   01 11 01.9   +03 41 37     0.903    1.513  103.9   40.7   249   27.3 

    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.