2021 DT
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	10 Jul 2026	27.5	1.444 AU	0.973 AU	00h59m	+01°59'	93.0°	44.7°

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
2026-07-10 00:00 UT   00 59 02.8   +01 59 47     0.973    1.444   93.0   44.7   248   27.5 
2026-07-10 02:08 UT   00 59 08.4   +02 00 31     0.973    1.445   93.1   44.6   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 
2026-07-26 00:00 UT   01 11 32.1   +03 46 47     0.898    1.517  104.7   40.3   249   27.3 
2026-07-27 00:00 UT   01 11 59.7   +03 51 45     0.894    1.522  105.5   40.0   249   27.3 
2026-07-28 00:00 UT   01 12 24.9   +03 56 29     0.889    1.526  106.4   39.7   249   27.3 
2026-07-29 00:00 UT   01 12 47.6   +04 01 01     0.884    1.530  107.2   39.3   249   27.3 
2026-07-30 00:00 UT   01 13 07.8   +04 05 19     0.879    1.535  108.1   39.0   249   27.2 
2026-07-31 00:00 UT   01 13 25.3   +04 09 23     0.874    1.539  108.9   38.6   249   27.2 
2026-08-01 00:00 UT   01 13 40.2   +04 13 14     0.869    1.543  109.8   38.2   249   27.2 
2026-08-02 00:00 UT   01 13 52.4   +04 16 51     0.864    1.547  110.7   37.8   249   27.2 
2026-08-03 00:00 UT   01 14 01.8   +04 20 14     0.859    1.552  111.6   37.5   249   27.2 
2026-08-04 00:00 UT   01 14 08.5   +04 23 23     0.854    1.556  112.5   37.1   249   27.2 
2026-08-05 00:00 UT   01 14 12.3   +04 26 18     0.849    1.560  113.4   36.6   249   27.1 
2026-08-06 00:00 UT   01 14 13.3   +04 28 57     0.844    1.564  114.3   36.2   249   27.1 
2026-08-07 00:00 UT   01 14 11.3   +04 31 22     0.839    1.568  115.3   35.8   249   27.1 
2026-08-08 00:00 UT   01 14 06.4   +04 33 32     0.834    1.572  116.3   35.3   249   27.1 
2026-08-09 00:00 UT   01 13 58.4   +04 35 27     0.829    1.576  117.2   34.9   249   27.1 

    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.