Back 127 بالارد (كويكب) ARZ (11277) Ballard CE (11277) Ballard German 11277 Ballard Esperanto سیارک ۱۱۲۷۷ Persian (11277) Ballard French 11277 Ballard Hungarian 11277 Ballard Italian (11277) Ballard Polish 11277 Ballard Portuguese

11277 Ballard

11277 Ballard
Discovery[1]
Discovered byC. Shoemaker
E. Shoemaker
Discovery sitePalomar Obs.
Discovery date8 October 1988
Designations
(11277) Ballard
Named after
Robert Ballard[1]
(American oceanographer)
1988 TW2 · 1995 MG
main-belt[1][2] · (inner)
Phocaea[3][4]
Orbital characteristics[2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc28.73 yr (10,493 d)
Aphelion2.9757 AU
Perihelion1.8295 AU
2.4026 AU
Eccentricity0.2385
3.72 yr (1,360 d)
22.337°
0° 15m 52.92s / day
Inclination22.787°
254.59°
43.574°
Physical characteristics
6.298±0.075 km[3][5][6]
>10 h[7]
0.222[5][6]
S (assumed)[4]
13.00[5][8][9]
13.10[1][2][4][10]
13.53[11]

11277 Ballard (provisional designation 1988 TW2) is a Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers (3.9 miles) in diameter. It was discovered on 8 October 1988, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California.[1] The assumed S-type asteroid has a rotation period of at least 10 hours.[4] It was named for American marine scientist Robert Ballard.[1]

  1. ^ a b c d e f Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Ferret was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Carbognani-2011a was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference WISE was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).

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