31298 Chantaihei
asteroid
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Key Facts
- Discoverer or inventor: Lincoln Near-Earth Asteroid Research[1]
- Site of astronomical discovery: Experimental Test Site[2]
- Follows: (31297) 1998 FZ74[3]
- Followed by: (31299) 1998 FJ80[4]
- Minor planet group: asteroid belt[5]
- Parent astronomical body: Sun[6]
- Provisional designation: 1998 FB77[7], 2000 SQ249[8]
- Time of discovery or invention: March 24, 1998[9]
- Significant event: naming[10]
- Orbital eccentricity: 0.11[11], 0.1140570[12], 0.1219280537615648[13]
- Absolute magnitude: 14.3[14], 14.48[15]
- Orbital inclination: 5.71017 degree[16], 5.726693386372632 degree[17]
- Orbital period: 5.46 years[18], 1987.259639884878 day[19]
- Longitude of ascending node: 67.05398 degree[20], 66.44224877193047 degree[21]
- Semi-major axis of an orbit: 3.1003723 astronomical unit[22], 3.093409799560682 astronomical unit[23]
- Apoapsis: 3.454 astronomical unit[24], 3.470583235908068 astronomical unit[25]
- Periapsis: 2.7467531 astronomical unit[26], 2.716236363213295 astronomical unit[27]
- Argument of periapsis: 142.31151 degree[28], 145.870674359057 degree[29]
- Mean anomaly: 299.05495 degree[30], 9.231960637911614 degree[31]
- Diameter: 4.422 km[32]
- Albedo: 0.172[33]
- Epoch: November 21, 2025[34]
- Time of periapsis: 2460949.5380478534 Julian day[35]