| B/astorb/astorb | Orbits of Minor Planets (Bowell+ 2014) The catalog of Orbits (2014-01-05) (1078400 rows) | Name==Ryugu |
Note: This is a copy of the Asteroid Observing Services from the Asteroid Database at Lowell Observatory
| Column | Value | Explain (UCD) | |
| recno | 162173 | Record number assigned by the VizieR team. Should Not be used for identification. | |
| Planet | 162173 | (i) [1,]+ Asteroid number (blank if unnumbered) | |
| Name | Ryugu | (i) Name or preliminary designation. | |
| CompName | L.H. Wasserman | Orbit Computer. | |
| H | 19.39 | mag | Absolute magnitude H parameter (Note 1) |
| G | 0.15 | Slope magnitude parameter (Note 1) | |
| B-V | mag | Color index (see E.F.Tedesco, pp.1090-1138) | |
| Diam | km | IRAS diameter (see E.F.Tedesco, pp.1151-1161; catalog II/190) | |
| IRAScl | IRAS Taxonomic classification | ||
| Ephem | Ephem | Show the Ephemeride of this Asteroid (from IMCCE) | |
| Xflg | 2 | [0/31] Planet-crossing code (Note 4) | |
| Oflg | 0 | [0/255] Orbit computation code (Note 5) | |
| Sflg | 0 | [0/31] Survey observation code (Note 6) | |
| MPCC | 0 | [0/7] MPC critical-list code (Note 7) | |
| LowC | 0 | [0/5] Lowell Observatory discovery code (Note 8) | |
| FlaC | 1 | [0/10] Flagstaff Station Code (Note 9) | |
| Narc | 12715 | Orbital arc, days, spanned by observations used in orbit computation. | |
| Nobs | 1936 | Number of observations used in orbit computation. | |
| Epoch | 2021-03-27 | "Y:M:D" | (i) Epoch of osculation, yyyymmdd (TDT) (Note 2) |
| M | 61.535985 | deg | Mean anomaly (Note 3) |
| omega | 211.577171 | deg | Argument of perihelion (Note 3) |
| Omega | 251.325007 | deg | Longitude of ascending node (Note 3) |
| i | 5.865632 | deg | Inclination (Note 3) |
| e | 0.19123754 | Eccentricity (Note 3) | |
| a | 1.19095781 | AU | Semimajor axis (Note 3) |
| DateOrb | 2021-03-13 | "Y:M:D" | Date of orbit computation |
| CEU | 3e-02 | arcsec | Current Ephemeris Uncertainty (Note 10) |
| dCEU | -6e-04 | arcsec/d | Rate of change of CEU (Note 10) |
| DateCEU | 2021-04-28 | "Y:M:D" | Date of CEU |
| PEU0 | 5e-03 | arcsec | Next Peak Ephemeris Uncertainty (PEU) (Note 11) |
| DatePEU0 | 2022-10-24 | "Y:M:D" | Date of PEU0 |
| PEU1 | 3e-02 | arcsec | Largest PEU in 10 years from DatePEU0 (Note 11) |
| DatePEU1 | 2021-04-28 | "Y:M:D" | Date of PEU1 |
| PEU2 | 3e-02 | arcsec | As PEU1, assuming that two observations were made at DatePEU0 (Note 11) |
| DatePEU2 | 2025-06-18 | "Y:M:D" | Date of PEU2 |
| mod | * | [a*] added or updated (Note 12) | |
| modDate | 2021-03-21 | "Y:M:D" | Date of last modification (Note 12) |