( 4197) Morpheus

(1982 TA )

Discovery Circumstances:

E. F. Helin, E. M. Shoemaker - Palomar Mountain

11 Oct 1982

(1)

Orbital Type:

AP

(*)( 2)( 3)

Taxonomic Type:

S;Sq

( 4)( 5)( 6)( 7)

Albedo:

0.239

( 8)( 9)(10)

Diameter:(km)

2.98 km

(11)(12)(13)

H:(mag)

14.800

(14)(15)(16)

G:

0.01

(17)(18)

U-B:(mag)

0.40

(19)

B-V:(mag)

0.75

(19)

V-R:(mag)

-

-

R-I:(mag)

-

-

Rotation Period:(hrs)

3.5380

(20)(21)(22)(23)(24)(25)

Quality:

3 !

(20)(21)(22)(23)(24)(25)

Lightcurve Amplitude:(mag)

0.29-0.49

(20)(21)(22)(23)(24)(25)

Spin Vector:

-

-

Sense of Rotation:

-

-

Radar Observations:

Y

(26)(27)

Spectral Observations:

Y

(28)(29)

IR Observations:

-

-

Remarks

* - orbital type derived from osculating orbital elements

! - quality code according to Lagerkvist et al. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1162-1179.

References

( 1) I.A.U.Circ. 3735

(002) Milani, A. et al. (1989) Icarus 78, 212-269. (Dynamics of planet-crossing asteroids - Classes of orbital behavior - project Spaceguard)

(003) Nugent, C.R. et al. (2012) Astron. J. 144, 60. (DETECTION OF SEMIMAJOR AXIS DRIFTS IN 54 NEAR-EARTH ASTEROIDS: NEW MEASUREMENTS OF THE YARKOVSKY EFFECT) (54 NEAs)

(004) Wisniewski, W.Z. et al. (1997) Icarus 126, 395-449. (Photometric Observations of 125 Asteroids)

(005) Bus, S.J. & Binzel, R.P. (2002) Icarus 158,106-145. (Phase II of the Small Main-Belt Asteroid Spectrographic Survey: A Feature-Based Taxonomy.)

(006) Binzel, R.P. et al. (2004) Icarus 170, 259-294. (Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes.)

(007) DeMeo, F.E. et al. (2014) Icarus 227, 112-122. (Mars encounters cause fresh surfaces on some near-Earth asteroids) (contains taxonomic classification of 249 NEAs)

(008) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

(009) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)

(010) Veeder, G.J. et al. (1989) Astron. J. 97, 1211-1219. (Radiometry of near-earth asteroids)

(011) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

(012) Mainzer, A. et al. (2011) ApJ 743, 156. (NEOWISE Observations of Near-Earth Objects: Preliminary Results) (albedo and diameters of 428 NEOs)

(013) Veeder, G.J. et al. (1989) Astron. J. 97, 1211-1219. (Radiometry of near-earth asteroids)

(014) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

(015) Pravec, P. et al. (2000) Planetary And Space Science 48, 59-65. (CCD photometry of asteroids (4197) 1982 TA and 1997 LY4)

(016) Wisniewski, W.Z. et al. (1997) Icarus 126, 395-449. (Photometric Observations of 125 Asteroids)

(017) Pravec, P. et al. (2012) Icarus 221, 365-387 (Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations)

(018) Pravec, P. et al. (2000) Planetary And Space Science 48, 59-65. (CCD photometry of asteroids (4197) 1982 TA and 1997 LY4)

(019) Dunbar, R.S. & S.J. Bus (1982) I.A.U. Circ. 3738. (1982 TA - U-B,B-V)

(020) Wisniewski, W.Z. et al. (1997) Icarus 126, 395-449. (Photometric Observations of 125 Asteroids)

(021) Hoffmann, M. et al. (1993) Acta Astronomica 43, 61-67. (Photometric observations of four near-earth asteroids)

(022) Pravec, P. et al. (2000) Planetary And Space Science 48, 59-65. (CCD photometry of asteroids (4197) 1982 TA and 1997 LY4)

(023) Krugly, Yu.N. et al. (2002) Icarus 158, 294-304. (The Near-Earth Objects Follow-up Program. IV. CCD Photometry in 1996-1999).

(024) Harris, A.W. (DLR) (1998) Icarus 131, 291-301. (A Thermal Model for Near-Earth Asteroids)

(025) Prokofeva, V.V. et al. (2001) Solar System Research 35, 422-428. (Three periods in asteroid 4197 brightness variations)

(026) Ostro, S.J. et al. (1998) B.A.A.S 30, 1036. (Near-Earth-Asteroid Radar at Goldstone, Aug 1996 - Jun 1998) [7822(1991CS),4197(1982TA),4179Toutatis,7341(1991VK),7482(1994PC1),1997BR,1998BY7,6037(1988EG),1998KY26]

(027) Koyama, Y., et al., (2001) Journal of the Communications Research Laboratory [Japan] 48, 143-150. (Radar observations of near Earth asteroids 6489 Golevka and 4197 (1982 TA).)

(028) Bus, S.J. & Binzel, R.P. (2002) Icarus 158,106-145. (Phase II of the Small Main-Belt Asteroid Spectrographic Survey: A Feature-Based Taxonomy.)

(029) Binzel, R.P. et al. (2004) Icarus 170, 259-294. (Observed spectral properties of near-Earth objects: results for population distribution, source regions, and space weathering processes.)


NEODyS Page of ( 4197) Morpheus