2015 XO
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Mar 2026	30.8	2.408 AU	2.138 AU	17h50m	-22°48'	93.2°	24.4°

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 2015 XO are:

            e (Eccentricity)                : 0.4110059
            a (Semimajor axis)              : 1.7618063
            i (Inclination)                 : 2.09379
            Ω (Longitude of ascending node) : 78.64435
            ω (Argument of perihelion)      : 2.26718
            M (Mean anomaly)                : 91.64147
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 80.91002
            B (Latitude of perihelion)      : 0.08281
            P (Orbital period in years)     : 2.34            
        

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
2026-03-22 00:00 UT   17 50 38.7   -22 48 12     2.138    2.408   93.2   24.4   271   30.8 
2026-03-22 07:15 UT   17 50 52.2   -22 48 20     2.135    2.409   93.4   24.4   271   30.8 
2026-03-23 00:00 UT   17 51 23.0   -22 48 37     2.126    2.410   94.0   24.4   271   30.8 
2026-03-24 00:00 UT   17 52 05.9   -22 49 01     2.114    2.412   94.8   24.3   271   30.8 
2026-03-25 00:00 UT   17 52 47.3   -22 49 24     2.102    2.414   95.7   24.3   271   30.8 
2026-03-26 00:00 UT   17 53 27.3   -22 49 47     2.090    2.415   96.5   24.2   271   30.7 
2026-03-27 00:00 UT   17 54 05.7   -22 50 09     2.078    2.417   97.3   24.2   271   30.7 
2026-03-28 00:00 UT   17 54 42.7   -22 50 31     2.066    2.419   98.2   24.1   270   30.7 
2026-03-29 00:00 UT   17 55 18.0   -22 50 52     2.054    2.420   99.0   24.0   270   30.7 
2026-03-30 00:00 UT   17 55 51.9   -22 51 13     2.041    2.422   99.9   24.0   270   30.7 
2026-03-31 00:00 UT   17 56 24.1   -22 51 33     2.029    2.423  100.8   23.9   270   30.7 
2026-04-01 00:00 UT   17 56 54.7   -22 51 53     2.017    2.425  101.6   23.8   270   30.7 
2026-04-02 00:00 UT   17 57 23.8   -22 52 13     2.005    2.426  102.5   23.7   270   30.7 
2026-04-03 00:00 UT   17 57 51.1   -22 52 33     1.993    2.428  103.4   23.6   270   30.6 
2026-04-04 00:00 UT   17 58 16.8   -22 52 52     1.981    2.429  104.3   23.5   270   30.6 
2026-04-05 00:00 UT   17 58 40.8   -22 53 12     1.969    2.431  105.2   23.4   270   30.6 
2026-04-06 00:00 UT   17 59 03.0   -22 53 32     1.958    2.432  106.1   23.3   270   30.6 
2026-04-07 00:00 UT   17 59 23.5   -22 53 51     1.946    2.434  107.0   23.2   270   30.6 
2026-04-08 00:00 UT   17 59 42.3   -22 54 11     1.934    2.435  107.9   23.0   270   30.6 
2026-04-09 00:00 UT   17 59 59.2   -22 54 31     1.922    2.437  108.8   22.9   270   30.5 
2026-04-10 00:00 UT   18 00 14.3   -22 54 51     1.910    2.438  109.7   22.8   270   30.5 
2026-04-11 00:00 UT   18 00 27.6   -22 55 12     1.899    2.439  110.6   22.6   270   30.5 
2026-04-12 00:00 UT   18 00 39.0   -22 55 33     1.887    2.441  111.6   22.4   270   30.5 
2026-04-13 00:00 UT   18 00 48.5   -22 55 54     1.876    2.442  112.5   22.3   270   30.5 
2026-04-14 00:00 UT   18 00 56.1   -22 56 15     1.864    2.443  113.5   22.1   270   30.5 
2026-04-15 00:00 UT   18 01 01.7   -22 56 37     1.853    2.445  114.4   21.9   270   30.4 
2026-04-16 00:00 UT   18 01 05.4   -22 56 60     1.841    2.446  115.4   21.8   270   30.4 
2026-04-17 00:00 UT   18 01 07.1   -22 57 22     1.830    2.447  116.4   21.6   270   30.4 
2026-04-18 00:00 UT   18 01 06.8   -22 57 46     1.819    2.448  117.4   21.4   270   30.4 
2026-04-19 00:00 UT   18 01 04.4   -22 58 09     1.808    2.450  118.3   21.1   270   30.4 
2026-04-20 00:00 UT   18 01 00.0   -22 58 34     1.797    2.451  119.3   20.9   270   30.3 
2026-04-21 00:00 UT   18 00 53.6   -22 58 58     1.786    2.452  120.3   20.7   270   30.3 

    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.