2001 YD1
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Oct 2026	29.0	1.694 AU	2.534 AU	14h49m	-14°06'	26.0°	15.0°

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 2001 YD1 are:

            e (Eccentricity)                : 0.4639269
            a (Semimajor axis)              : 1.4863066
            i (Inclination)                 : 7.02351
            Ω (Longitude of ascending node) : 85.67163
            ω (Argument of perihelion)      : 285.55346
            M (Mean anomaly)                : 209.81580
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 11.33693
            B (Latitude of perihelion)      : -6.76509
            P (Orbital period in years)     : 1.81            
        

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
2026-10-12 00:00 UT   14 49 45.1   -14 06 35     2.534    1.694   26.0   15.0   103   29.0 
2026-10-12 06:40 UT   14 50 21.3   -14 09 51     2.533    1.693   25.9   14.9   103   29.0 
2026-10-13 00:00 UT   14 51 55.6   -14 18 21     2.533    1.689   25.6   14.8   103   29.0 
2026-10-14 00:00 UT   14 54 07.0   -14 30 04     2.532    1.683   25.2   14.6   102   29.0 
2026-10-15 00:00 UT   14 56 19.2   -14 41 45     2.531    1.678   24.7   14.4   102   29.0 
2026-10-16 00:00 UT   14 58 32.4   -14 53 24     2.529    1.672   24.3   14.2   102   29.0 
2026-10-17 00:00 UT   15 00 46.4   -15 05 00     2.528    1.666   23.9   14.0   102   29.0 
2026-10-18 00:00 UT   15 03 01.4   -15 16 34     2.527    1.661   23.5   13.8   102   28.9 
2026-10-19 00:00 UT   15 05 17.3   -15 28 04     2.525    1.655   23.1   13.6   102   28.9 
2026-10-20 00:00 UT   15 07 34.1   -15 39 32     2.523    1.649   22.6   13.4   101   28.9 
2026-10-21 00:00 UT   15 09 51.9   -15 50 57     2.521    1.644   22.2   13.3   101   28.9 
2026-10-22 00:00 UT   15 12 10.6   -16 02 19     2.519    1.638   21.8   13.1   101   28.9 
2026-10-23 00:00 UT   15 14 30.3   -16 13 38     2.517    1.632   21.4   12.9   101   28.9 
2026-10-24 00:00 UT   15 16 50.9   -16 24 54     2.515    1.626   21.0   12.7   101   28.8 
2026-10-25 00:00 UT   15 19 12.5   -16 36 06     2.513    1.620   20.6   12.5   100   28.8 
2026-10-26 00:00 UT   15 21 35.1   -16 47 14     2.510    1.614   20.2   12.3   100   28.8 

    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.