2019 RO2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	5 Sep 2026	30.4	2.570 AU	2.671 AU	15h31m	-20°20'	73.4°	22.1°

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 2019 RO2 are:

            e (Eccentricity)                : 0.5701734
            a (Semimajor axis)              : 2.4248250
            i (Inclination)                 : 1.56449
            Ω (Longitude of ascending node) : 21.85973
            ω (Argument of perihelion)      : 5.27478
            M (Mean anomaly)                : 273.47777
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 27.13255
            B (Latitude of perihelion)      : 0.14381
            P (Orbital period in years)     : 3.78            
        

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
2026-09-05 00:00 UT   15 31 12.6   -20 20 02     2.671    2.570   73.4   22.1   104   30.4 
2026-09-05 04:46 UT   15 31 24.1   -20 20 40     2.672    2.569   73.2   22.1   104   30.4 
2026-09-06 00:00 UT   15 32 11.0   -20 23 12     2.678    2.564   72.6   22.0   104   30.4 
2026-09-07 00:00 UT   15 33 10.6   -20 26 25     2.686    2.558   71.9   22.0   104   30.4 
2026-09-08 00:00 UT   15 34 11.3   -20 29 40     2.693    2.552   71.2   21.9   104   30.4 
2026-09-09 00:00 UT   15 35 13.0   -20 32 57     2.700    2.547   70.4   21.9   104   30.4 
2026-09-10 00:00 UT   15 36 15.8   -20 36 17     2.707    2.541   69.7   21.8   104   30.4 
2026-09-11 00:00 UT   15 37 19.7   -20 39 39     2.715    2.535   69.0   21.8   104   30.4 
2026-09-12 00:00 UT   15 38 24.7   -20 43 04     2.722    2.529   68.3   21.7   104   30.4 
2026-09-13 00:00 UT   15 39 30.7   -20 46 30     2.728    2.522   67.6   21.6   104   30.4 
2026-09-14 00:00 UT   15 40 37.8   -20 49 58     2.735    2.516   66.9   21.6   104   30.4 
2026-09-15 00:00 UT   15 41 45.9   -20 53 28     2.742    2.510   66.2   21.5   104   30.4 
2026-09-16 00:00 UT   15 42 55.0   -20 57 00     2.749    2.504   65.5   21.4   103   30.4 
2026-09-17 00:00 UT   15 44 05.2   -21 00 33     2.755    2.498   64.8   21.3   103   30.4 
2026-09-18 00:00 UT   15 45 16.3   -21 04 08     2.762    2.492   64.1   21.3   103   30.3 
2026-09-19 00:00 UT   15 46 28.5   -21 07 44     2.768    2.486   63.4   21.2   103   30.3 
2026-09-20 00:00 UT   15 47 41.7   -21 11 22     2.774    2.480   62.7   21.1   103   30.3 
2026-09-21 00:00 UT   15 48 55.8   -21 15 00     2.780    2.474   62.0   21.0   103   30.3 
2026-09-22 00:00 UT   15 50 10.9   -21 18 40     2.786    2.467   61.4   20.9   103   30.3 
2026-09-23 00:00 UT   15 51 27.1   -21 22 20     2.792    2.461   60.7   20.8   103   30.3 
2026-09-24 00:00 UT   15 52 44.1   -21 26 01     2.798    2.455   60.0   20.7   103   30.3 
2026-09-25 00:00 UT   15 54 02.2   -21 29 43     2.803    2.449   59.3   20.6   103   30.3 
2026-09-26 00:00 UT   15 55 21.2   -21 33 26     2.809    2.443   58.7   20.5   103   30.3 
2026-09-27 00:00 UT   15 56 41.1   -21 37 09     2.814    2.436   58.0   20.4   102   30.3 
2026-09-28 00:00 UT   15 58 02.0   -21 40 53     2.820    2.430   57.3   20.3   102   30.3 
2026-09-29 00:00 UT   15 59 23.9   -21 44 36     2.825    2.424   56.7   20.2   102   30.3 
2026-09-30 00:00 UT   16 00 46.6   -21 48 20     2.830    2.417   56.0   20.1   102   30.3 
2026-10-01 00:00 UT   16 02 10.4   -21 52 04     2.835    2.411   55.4   20.0   102   30.3 
2026-10-02 00:00 UT   16 03 35.0   -21 55 49     2.840    2.405   54.7   19.9   102   30.3 
2026-10-03 00:00 UT   16 05 00.6   -21 59 33     2.844    2.398   54.1   19.7   102   30.3 
2026-10-04 00:00 UT   16 06 27.1   -22 03 16     2.849    2.392   53.4   19.6   102   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.