2015 WO1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	2 Oct 2026	26.7	1.779 AU	1.989 AU	08h38m	+25°21'	63.2°	30.2°

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 2015 WO1 are:

            e (Eccentricity)                : 0.4750198
            a (Semimajor axis)              : 1.4625619
            i (Inclination)                 : 13.78321
            Ω (Longitude of ascending node) : 62.84583
            ω (Argument of perihelion)      : 253.04721
            M (Mean anomaly)                : 28.77046
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 135.42042
            B (Latitude of perihelion)      : -13.17322
            P (Orbital period in years)     : 1.77            
        

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
2026-10-02 00:00 UT   08 38 15.9   +25 21 39     1.989    1.779   63.2   30.2   288   26.7 
2026-10-02 15:33 UT   08 39 26.6   +25 21 23     1.985    1.782   63.6   30.2   288   26.7 
2026-10-03 00:00 UT   08 40 04.8   +25 21 15     1.983    1.784   63.8   30.2   288   26.7 
2026-10-04 00:00 UT   08 41 52.9   +25 20 53     1.977    1.789   64.4   30.3   288   26.7 
2026-10-05 00:00 UT   08 43 40.0   +25 20 33     1.970    1.794   65.0   30.4   288   26.7 
2026-10-06 00:00 UT   08 45 26.2   +25 20 15     1.964    1.798   65.6   30.4   289   26.7 
2026-10-07 00:00 UT   08 47 11.4   +25 20 01     1.958    1.803   66.2   30.5   289   26.7 
2026-10-08 00:00 UT   08 48 55.6   +25 19 49     1.951    1.808   66.8   30.5   289   26.7 
2026-10-09 00:00 UT   08 50 38.9   +25 19 40     1.944    1.813   67.4   30.6   289   26.7 
2026-10-10 00:00 UT   08 52 21.2   +25 19 35     1.937    1.817   68.0   30.6   289   26.7 
2026-10-11 00:00 UT   08 54 02.5   +25 19 33     1.931    1.822   68.6   30.7   289   26.7 
2026-10-12 00:00 UT   08 55 42.7   +25 19 35     1.924    1.827   69.3   30.7   289   26.7 
2026-10-13 00:00 UT   08 57 22.0   +25 19 41     1.916    1.831   69.9   30.8   289   26.7 
2026-10-14 00:00 UT   08 59 00.2   +25 19 52     1.909    1.836   70.5   30.8   289   26.7 
2026-10-15 00:00 UT   09 00 37.4   +25 20 06     1.902    1.840   71.2   30.9   289   26.7 
2026-10-16 00:00 UT   09 02 13.6   +25 20 26     1.895    1.845   71.8   30.9   289   26.7 
2026-10-17 00:00 UT   09 03 48.7   +25 20 51     1.887    1.849   72.4   30.9   289   26.7 
2026-10-18 00:00 UT   09 05 22.8   +25 21 20     1.880    1.854   73.1   31.0   289   26.7 
2026-10-19 00:00 UT   09 06 55.7   +25 21 55     1.872    1.858   73.7   31.0   290   26.7 
2026-10-20 00:00 UT   09 08 27.6   +25 22 36     1.864    1.862   74.4   31.0   290   26.7 
2026-10-21 00:00 UT   09 09 58.4   +25 23 23     1.856    1.867   75.1   31.0   290   26.7 
2026-10-22 00:00 UT   09 11 28.1   +25 24 15     1.848    1.871   75.7   31.0   290   26.7 
2026-10-23 00:00 UT   09 12 56.7   +25 25 14     1.840    1.875   76.4   31.0   290   26.7 
2026-10-24 00:00 UT   09 14 24.1   +25 26 19     1.832    1.880   77.1   31.1   290   26.7 
2026-10-25 00:00 UT   09 15 50.5   +25 27 32     1.824    1.884   77.8   31.1   290   26.7 

    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.