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Table 3

Orbital elements of 2021 GM1.

Six-parameter solution Unit
Semi-major axis (a) 0.968020575 ± 1.43 × 10−8 au
Eccentricity (e) 0.041997691 ± 1.58 × 10−8 /
Inclination (i) 1.598736270 ± 4.09 × 10−7 deg
Long. of Asc. Node (Ω) 193.321099298 ± 1.95 × 10−6 deg
Argument of Perihelion (ω) 207.383938594 ± 8.52 × 10−6 deg
Mean anomaly (M) 162.303893236 ± 1.00 × 10−5 deg
Normalized residuals rms 0.776 /

Seven-parameter solution

Semi-major axis (a) 0.968020505 ± 1.38 × 10−8 au
Eccentricity (e) 0.041997755 ± 1.49 × 10−8 /
Inclination (i) 1.598740133 ± 5.18 × 10−7 deg
Long. of Asc. Node (Ω) 193.321107921 ± 2.15 × 10−6 deg
Argument of Perihelion (ω) 207.383858669 ± 1.14 × 10−5 deg
Mean anomaly (M) 162.303967843 ± 1.23 × 10−5 deg
Area-to-mass (A/m) 0.2564 ± 0.0257 m2 t−1
Normalized residuals rms 0.622 /

Notes. Orbital elements refer to date 2021-04-14.660191 (MJD 59318.660191 TDT). Two solutions areshown:onedeterminedwith6-D OD, and another one with 7-OD OD using SRP as additional force.

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