SMILE is a payload in LEO orbit, operated by Chinese Academy of Sciences / European Space Agency, launched 2026.
Orbital data last updated 30 days ago. This may not reflect the current orbital state — not for operational use or collision avoidance.
| Orbit class | LEO |
| Inclination | 69.9787° |
| Eccentricity | 0.3310191 |
| Period | 191.0 min |
| Apogee | 8,243 km |
| Perigee | 971 km |
| Mean motion | 7.54049028 rev/day |
| RAAN | 209.3069° |
| Arg of perigee | 288.5544° |
| Mean anomaly | 45.7342° |
| B* | -3.6778e-4 |
| Rev at epoch | 248 |
1 69123U 26109A 26158.38327019 -.00000041 00000-0 -36778-3 0 99952 69123 69.9787 209.3069 3310191 288.5544 45.7342 7.54049028 2480{
"OBJECT_NAME": "SMILE",
"OBJECT_ID": "2026-109A",
"EPOCH": "2026-06-07T09:11:54.544+00:00",
"MEAN_MOTION": 7.54049028,
"ECCENTRICITY": 0.3310191,
"INCLINATION": 69.9787,
"RA_OF_ASC_NODE": 209.3069,
"ARG_OF_PERICENTER": 288.5544,
"MEAN_ANOMALY": 45.7342,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 69123,
"REV_AT_EPOCH": 248,
"BSTAR": -0.00036778157,
"MEAN_MOTION_DOT": -4.1e-7,
"MEAN_MOTION_DDOT": 0
}Reconstructed from CelesTrak OMM mean-elements (element-set number is a placeholder). TLE/OMM data is approximate. Not for operational use or collision avoidance.
| Name | SMILE |
| Operator | Chinese Academy of Sciences / European Space AgencyHIGHvia GCAT — Jonathan McDowell's General Catalog⚠ sources disagree |
| Country | China |
| Launch date | |
| Launch mass (kg) |
//Orbital data is approximate and not for operational use. Last ingested from CelesTrak on Jul 7, 2026.
| Mission purpose | — |
| Object class |
| Orbital regime |
| Status |