(136900) 1998 HL49

(1998 HL49 )

Discovery Circumstances:

Spacewatch - Steward Observatory, Kitt Peak-Spacewatch

30 Apr 1998

(1)

Orbital Type:

AP

(*)

Taxonomic Type:

-

-

Albedo:

-

-

Diameter:(km)

1.0 - 2.3 km

($)

H:(mag)

17.30

(#)

G:

0.15

(#)

U-B:(mag)

-

-

B-V:(mag)

0.70

( 2)

V-R:(mag)

0.51

( 3)

R-I:(mag)

0.35

( 4)

V-I:(mag)

0.87

( 5)

B-R:(mag)

-

-

Rotation Period:(hrs)

-

-

Quality:

-

-

Lightcurve Amplitude:(mag)

-

-

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

-

-

Spectral Observations:

-

-

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

$ - diameter range derived from H and assumed albedo for C and S type - 0.04 and 0.20 respectively

# - absolute magnitude H derived from astrometric observation via orbit determination - G value assumed to be 0.15

References

(001) M.P.E.C. 1998-J12

(002) Lin, C-H. et al. (2018) P&SS 152, 116-135. (Photometric survey and taxonomic identifications of 92 near-Earth asteroids)

(003) Lin, C-H. et al. (2018) P&SS 152, 116-135. (Photometric survey and taxonomic identifications of 92 near-Earth asteroids)

(004) Lin, C-H. et al. (2018) P&SS 152, 116-135. (Photometric survey and taxonomic identifications of 92 near-Earth asteroids)

(005) Lin, C-H. et al. (2018) P&SS 152, 116-135. (Photometric survey and taxonomic identifications of 92 near-Earth asteroids)


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