2019 RO2
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	14 Jan 2026	31.7	3.542 AU	4.030 AU	15h48m	-20°35'	54.0°	13.0°

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 2019 RO2 are:

            e (Eccentricity)                : 0.5703203
            a (Semimajor axis)              : 2.4245373
            i (Inclination)                 : 1.56476
            Ω (Longitude of ascending node) : 21.86527
            ω (Argument of perihelion)      : 5.27939
            M (Mean anomaly)                : 221.26186
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 27.14270
            B (Latitude of perihelion)      : 0.14396
            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
2026-01-14 00:00 UT   15 48 32.0   -20 35 44     4.030    3.542   54.0   13.0   282   31.7 
2026-01-14 13:55 UT   15 49 06.8   -20 37 40     4.021    3.540   54.4   13.1   282   31.7 
2026-01-15 00:00 UT   15 49 31.9   -20 39 04     4.014    3.539   54.8   13.1   282   31.6 
2026-01-16 00:00 UT   15 50 31.5   -20 42 22     3.999    3.537   55.5   13.3   282   31.6 
2026-01-17 00:00 UT   15 51 30.7   -20 45 37     3.983    3.534   56.3   13.4   282   31.6 
2026-01-18 00:00 UT   15 52 29.5   -20 48 50     3.968    3.531   57.1   13.5   282   31.6 
2026-01-19 00:00 UT   15 53 27.8   -20 52 00     3.952    3.529   57.9   13.7   282   31.6 
2026-01-20 00:00 UT   15 54 25.8   -20 55 09     3.936    3.526   58.7   13.8   282   31.6 
2026-01-21 00:00 UT   15 55 23.3   -20 58 14     3.920    3.524   59.5   13.9   282   31.6 
2026-01-22 00:00 UT   15 56 20.4   -21 01 17     3.904    3.521   60.3   14.0   281   31.6 
2026-01-23 00:00 UT   15 57 17.0   -21 04 18     3.888    3.518   61.1   14.2   281   31.6 
2026-01-24 00:00 UT   15 58 13.1   -21 07 17     3.871    3.516   61.8   14.3   281   31.6 
2026-01-25 00:00 UT   15 59 08.8   -21 10 13     3.855    3.513   62.6   14.4   281   31.6 
2026-01-26 00:00 UT   16 00 04.0   -21 13 06     3.838    3.510   63.4   14.5   281   31.6 
2026-01-27 00:00 UT   16 00 58.7   -21 15 58     3.822    3.508   64.2   14.6   281   31.6 
2026-01-28 00:00 UT   16 01 52.8   -21 18 46     3.805    3.505   65.0   14.8   281   31.6 
2026-01-29 00:00 UT   16 02 46.5   -21 21 33     3.788    3.502   65.8   14.9   281   31.6 
2026-01-30 00:00 UT   16 03 39.6   -21 24 17     3.771    3.499   66.6   15.0   281   31.6 
2026-01-31 00:00 UT   16 04 32.2   -21 26 59     3.754    3.497   67.5   15.1   281   31.5 
2026-02-01 00:00 UT   16 05 24.2   -21 29 38     3.737    3.494   68.3   15.2   281   31.5 
2026-02-02 00:00 UT   16 06 15.7   -21 32 15     3.720    3.491   69.1   15.3   281   31.5 
2026-02-03 00:00 UT   16 07 06.6   -21 34 50     3.702    3.488   69.9   15.4   281   31.5 
2026-02-04 00:00 UT   16 07 56.9   -21 37 22     3.685    3.486   70.7   15.5   281   31.5 
2026-02-05 00:00 UT   16 08 46.6   -21 39 52     3.668    3.483   71.5   15.6   280   31.5 
2026-02-06 00:00 UT   16 09 35.7   -21 42 19     3.650    3.480   72.3   15.7   280   31.5 
2026-02-07 00:00 UT   16 10 24.2   -21 44 44     3.632    3.477   73.2   15.8   280   31.5 
2026-02-08 00:00 UT   16 11 12.0   -21 47 07     3.615    3.474   74.0   15.8   280   31.5 
2026-02-09 00:00 UT   16 11 59.2   -21 49 28     3.597    3.471   74.8   15.9   280   31.5 
2026-02-10 00:00 UT   16 12 45.7   -21 51 46     3.579    3.468   75.6   16.0   280   31.5 
2026-02-11 00:00 UT   16 13 31.5   -21 54 01     3.561    3.466   76.5   16.1   280   31.4 
2026-02-12 00:00 UT   16 14 16.6   -21 56 15     3.543    3.463   77.3   16.1   280   31.4 
2026-02-13 00:00 UT   16 15 01.0   -21 58 26     3.525    3.460   78.1   16.2   280   31.4 

    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.