554 Peraga

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554 Peraga
Discovery
Discovered by Paul Götz
Discovery site Heidelberg
Discovery date 8 January 1905
Designations
1905 PS
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 115.51 yr (42190 d)
Aphelion 2.7391 AU (409.76 Gm)
Perihelion 2.0095 AU (300.62 Gm)
2.3743 AU (355.19 Gm)
Eccentricity 0.15364
3.66 yr (1336.3 d)
215.70°
0° 16m 9.84s / day
Inclination 2.9349°
295.434°
127.356°
Earth MOID 1.02266 AU (152.988 Gm)
Jupiter MOID 2.56683 AU (383.992 Gm)
Jupiter Tisserand parameter 3.525
Physical characteristics
Mean radius
47.935±2.05 km[1]
48.23 ± 0.84 km[2]
Mass (6.59 ± 0.66) × 1017 kg[2]
Mean density
1.40 ± 0.15 g/cm3[2]
13.7128 h (0.57137 d)
0.0496±0.005
9.1

554 Peraga is a minor planet orbiting the Sun that was discovered by German astronomer Paul Götz on January 8, 1905 from Heidelberg.

13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 101 km.[3]

References[edit]

  1. ^ a b Yeomans, Donald K., "554 Peraga", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 7 May 2016. 
  2. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  3. ^ Ostro, S. J.; et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science 229 (4712), pp. 442–446, Bibcode:1985Sci...229..442O, doi:10.1126/science.229.4712.442, PMID 17738665. 

External links[edit]